Mount Everest Disaster: The PRINCE2 Perspective

our site – FREE ESSAYS – DISSERTATION EXAMPLES Introduction The Mount Everest Disaster of 1996was one of the greatest expedition failures in the history of climbing. Young, Hailey, and Neame (2010) focused on the leadership failures of the expedition, and found that a situational analysis should have been carried out. However, there were multiple errors in planning and strategy that led to the death of eight people that could have been avoided. Sullivan (2007) approaches the failures from the risk-assessment perspective, stating that judgements were not made based on the basis of risk assessment, and there were no calculations performed before the dangerous expedition started. The below review of the disaster will highlight additional issues: lack of flexibility, performance and quality monitoring, and the inability to focus on the objectives of the project. The author of the current review will argue that using PRINCE2 project management approaches would have improved the feasibility of the project, allowing the team to succeed, eliminate o r minimise risks, and remain focused on the desired outcomes. 2. Situational Analysis According to Young et al. (2010: 1), â€Å"climbing teams pre-determine turnaround times to signal descent or abandon summit efforts†. However, these turnaround times were estimates, and did not take into consideration weather conditions, the training level of climbers, etc. There were no calculations made regarding to major risks, such as performance reduction due to the lower oxygen level at high altitudes, dehydration, lack of sleep, and – most importantly – reduced decision-making abilities of leaders (Young et al., 2010). Further risks were not assessed, such as the surprise snowstorm that occurred between 4 and 5 in the afternoon. There were other risk factors that could have been addressed before the trip, such as the problems with radio communication. For example, the leaders assumed that two people were dead, and abandoned them, however, they were alive. By the time they returned to rescue them, they could not be saved. Leadership errors are also noted by Sullivan (2007), who concludes that the two leading guides were unable to make decisions about turning back without Fisher, with whom they could not communicate with. If they took the clients back to camp on time, noting that the turnaround time has passed, they could have saved their lives. 3. Why and How the Expedition Failed According to Sullivan (2007), several people believe that the severe weather conditions caused the death of mountaineers on the Everest in 1996. He, however, notes that â€Å"the weather was a risk that should have been considered more carefully by both leaders† (Sullivan 2007: 38). Based on that statement, it is clear that no risk assessment was completed, and no real-time situation monitoring was implemented. The other reason why the project failed is the lack of clear role definition in the leadership team. There was already a rivalry between Hall and Fischer (Sullivan 2007), and it was not clear who was responsible for supervising the Sherpas, waiting for clients, providing medical emergency services, or even tying the ropes. This confusion about ropes resulted in a lack of action and delay. Delay – in a mountaineering world – means more oxygen used, and less time to turn around. Therefore, the lack of planning and clear roles was also responsible for the disaster. As Sullivan (2007: 42) puts it: â€Å"commercial high-altitude mountaineering must be recognized as an activity of risk, not one of risk-taking†. Analysing the bad decisions made by Hall and Fischer, Roberto (2002) introduces the idea of the â€Å"sunk cost effect†. He provides a clear definition for this effect as: â€Å"the tendency for people to escalate commitment to a course of action in which they have made substantial prior investments of time, money, or other resources†. This, translated to the world of climbers and commercial mountaineers means that they carry on, despite they know they are failing at the task, in other words: they are overcommitted, and make irrational decisions. This was the reason why they did not turn the climbers around, and let them carry on against the odds. Even though they had a â€Å"two o’ clock rule†, as a latest turnaround time, they did not communicate this clearly with the team. 4. How PRINCE2 Could Have Improved Project Management4.1. Process FundamentalsThere were several failures regarding the project fundamentals. In PRINCE2, these are described as starting up a project, directing a project, initiating the project, controlling stage, managing product delivery, managing stage boundaries, and closing a project. Each of these fundamentals can be applied to a project of climbing the Everest. In the starting up phase, the leaders should have clearly identified the objective of the project: completing the climb and getting all climbers back to the base safely. In the directing phase, they should have ensured that all infrastructure and resources were available, in good working condition, and accessible. In the project initiation stage, the leaders should have communicated the rules and objectives clearly with the climber and the Sherpas. They should have created a common understanding of the project (CIPFA 2012). The main failures, however, occurred on the co ntrolling and product delivery stages. Resource commitments were not agreed, and this meant that some climbers had to attempt reaching the camp without enough oxygen. There was simply no project manager who could have controlled the activities and created a stage plan. If there were controlling stages introduced, for example times when teams would communicate and provide updates, it would have been noticed on time that there were serious problems that needed solving. In the controlling stage, tolerances are also agreed (Murray 2010). If PRINCE2 was applied to the project, the different participants could have agreed on the acceptable deviance from the turnaround time, and many of the problems and communication errors could have been prevented. Similarly, if the framework was used in the development of the project, the product (expedition quality and safety) delivery would have been more controlled and better managed in the Managing Product Delivery stage. Finally, it is important to note that in the Managing Stage Boundaries stage. According to CIPFA (2012), this is the stage where â€Å"at each stage end, the continuing viability of the project should be confirmed†. If stage boundaries were created by the leaders, â€Å"reality checks† could have been completed, and it would have been clear that there was no chance to get all the participants safely home without oxygen. Based on benchmarking and evaluation, the project could have been abandoned (turning back), or redirected, modified. In the closing stage, the leaders should have identified lessons learned. More importantly, however, they should have learned from experience before starting the project, as they had many expeditions behind them, already. Reflecting on past and potential problems could have improved the overall project’s outcome and design.4.2. Theme FundamentalsBased on the theme fundamentals of PRINCE2, it is clear that the weakest aspect of proj ect design was risk. Managing uncertainties, such as weather, the physical condition of participants, communication systems’ reliability could have helped avoid risks that led to the death of climbers. There was no clear understanding and consensus on quality attributes the project wanted to achieve, and the plans were clearly not matched to the needs of participants (Plans Theme Fundamental). It is also necessary to highlight the fact that there was no clearly defined plan on dealing with changes, such as weather conditions, lateness. All the conditions, such as slow pace, not meeting deadlines had a negative impact on the project’s baseline aspects (CIPFA 2012). Continuous assessment of the viability of plans should have been carried out, such as performance monitoring, and the escalation of intervention plans if the project does not go according to plans. This control is in place to help the project manager determine whether or not the project should go on or be aba ndoned.4.3. Further ConsiderationsAs the TSO (2009a) guidance states, the key features of PRINCE2 for project managers are the clear definition of roles, authorities, and processes. If this framework was applied to the Everest expedition, all participants would have known what was expected from them in order to help achieve the acceptable quality product (outcome) (TSO 2009b). Marsh (1996) further explains the benefits of PRINCE2 for complicated projects: according to the summary provided by the authors, this system allows the clear definition of the requirements related to the organization itself, users, project managers, the operation team, and other stakeholders. If Hall and Fischer determined what was the desired outcome of the expedition, and identified processes that were needed to achieve them, assigning each individual with tasks, an advanced business system could have been developed. They could have agreed on set time-scales and project boundaries.4.4. Application of PRINCE2 PrinciplesThe Oracle (2011) White Paper further explains the main principles of PRINCE2, and they can all be applied to the case examined in this study. The first principle is continued business justification. This relates to regular reviews of the progress of the project, and decisions made whether or not it meets the needs of the organization. If this principle was applied in the Everest expedition of 1996, it would have been found that – because of the lack of oxygen, severe weather, and lack of adherence to timescales – carrying on with the trip was not serving the interest of the stakeholders, and would not result in the outcomes planned by the team. Learning from experience is another principle that would have helped the leaders prevent risks. It is evident from Sullivan’s (2007) account that the two experienced leaders have experienced problems previously. If these problems and potential risks of their recurrence were assessed before the expedition, plans could have been made to address the issues. For example, both Hall and Fischer have taken inexperienced climbers on the same route, and knew that the lack of planning would result in groups breaking up. Hall did know about the lack of reliable radio communication, and decided not to address the issue. There were no managed roles and responsibilities; another principle of PRINCE2. Sullivan (2007) writes that one of the guides, Anatoli Bourkeev did not act as a guide at all. He was hours ahead of clients. This clearly shows that responsibilities and roles were defined, he would have stayed with the clients and carried supplementary oxygen. Managing by stages was also not applied, as the leaders and guides were too focused on delivering the service clients paid for (Roberto, 2002). Even though another principle of the system is â€Å"Focus on Products†, it refers to fulfilling the product descriptions: in this case the product’s description would have been safe delivery of expedition, preserving the health and safety of participants, leaders, and Sherpas. However, several members fell ill, including Hall who had a previously developed chronic condition, and many people had to be rescued. Managing by exceptions was another principle that – followed – would have made the expedition safer and more successful. No alerts were made when problems occurred. As Roberto (2002: 145) writes: â€Å"The guides as well felt uncomfortable speaking up. Neil Beidleman, a guide on the Mountain Madness expedition, has indicated that he had serious reservations about people climbing well past midday. However, he did not feel comfortable telling Fischer and other team members that they should turn around†. In PRINCE2, risk registers are created (London South Bank University 2016), and they are accessed and updated by all participants. If this procedure was followed, the identified risk could have been dealt with appropriately: by management, rejection, elimination, or minimisation. Finally, PRINCE2 could have been tailored to the project environment, taking into consideration the challenges, the training level and health of participants, and the resources available. 5. Lessons Learned for Project Managers Several lessons can be learned from the Everest disaster of 1999. The main cause of the failure of leaders to keep participants, leaders, and Sherpas safe was the lack of clear quality measures, roles, and risk assessment. The project was not managed and monitored by stages, and communication was poor. The project owners did not ensure that all the resources needed for delivering a quality product (outcome) were in place (initiating a project). Based on the above assessment, it is clear that applying PRINCE2 principles, themes, and processes would have created better outcomes for the Everest expedition project. Bibliography CIPFA. 2012. PRINCE2 Quick Reference Guide. Ferguson, C. 2011. PRINCE2 for Small-scale Projects. Novare Consulting. London South Bank University. 2016. PRINCE2 Presentations and Lectures. Marsh, D., 1996. Project management and PRINCE. Health Informatics, 2(1), pp.21-27. Murray, A. 2010. White-paper: PRINCE2 AND Governance. Outperform. Document Number: 1042-01-01 Version Number: 1v0 Oracle. 2011. PeopleSoft Projects (ESA) Support for PRINCE2. An Oracle White Paper June 2011 Roberto, M.A., 2002. Lessons from Everest: The interaction of cognitive bias, psychological safety, and system complexity. California Management Review, 45(1), pp.136-158. Sullivan, P., Failure of Risk Management in the 1996 Everest Disaster. Discoveries. TSO. 2009a. Managing and Directing Successful Projects with PRINCE2. The Stationary Office. TSO. 2009b. The Executive Guide to Directing Projects: within a PRINCE2â„ ¢ and MSP ® Environment, TSO 2009 Young, S., Healey, K. and Neame, V., The Everest Disaster.

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Porter’s 5 Forces Analysis of the Retail Banking Industry in Australia Retail banking can be defined as an industry where financial institutions offer mass market banking in which individual customers use local branches of larger commercial banks. Services offered include savings and checking accounts, mortgages, personal loans, debit/credit cards. Retail banking aims to be the one-stop shop for as many financial services as possible on behalf of retail clients. Some retail banks have even made a push into investment services such as wealth management, brokerage accounts, private banking and retirement planning. While some of these ancillary services are outsourced to third parties, they often intertwine with core retail banking accounts like checking and savings to allow for easier transfers and maintenance. When applying the Porter Five Forces in analysing industry competitiveness and how it relates to the retail banking industry, the following outcomes have been found. 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If a person has a mortgage, car loan, credit card, checking account and mutual funds with one particular bank, it can be extremely tough for that person to switch to another bank. In an attempt to lure in customers, banks try to lower the price of switching, but many people would still rather stick with their current bank. On the other hand, large corporate clients have banks wrapped around their little fingers. Financial institutions by offering better exchange rates, more services, and exposure to foreign capital markets – work extremely hard to get high margin corporate clients. Industry Attractiveness One can conclude based on the outcomes of this analysis, that the retail banking industry would be a very difficult and an unattractive market to be considered by a potential competitor. More particularly for the following reasons; * The large market share of the big 4 banks (who pretty much have the market sawn up), * New loan application numbers have retracted significantly and have not rebounded since the GFC, * the need to have access to large amounts of capital,  * low margins by lower interest rates, * high borrowing cost, * Non-traditional lenders such as car manufactures offering extremely low finance rates, * With all these factors in mind, the barriers to entry are quite high.

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Scenarios of Labor Relations in Bangladesh Essay Example for Free

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Many restrictions: The Constitution provides for the right to form or join unions. There are many restrictions, however. Before a union can be registered, 30 per cent of workers in an enterprise have to be members and the union can be dissolved if its membership falls below this level. The ILO has informed the government that this is a clear barrier to freedom of association and recommended the law be amended, but that advice has been continuously ignored. Unions must have government approval to be registered, and no trade union action can be taken prior to registration. Unions can only be formed at the factory/establishment level, with some exceptions (such as private road transport, private inland river transport, tea, jute bailing, bidi production) where union formation can take place based on geographic area. There can be no more than three registered trade unions in any establishment. Membership in a union is restricted only to workers currently working at an establishment, meaning that severance from employment also results in the end of a worker’s membership in the union. Candidates for union office have to be current or former employees of an establishment or group of establishments. The Registrar of Trade Unions has wide powers to interfere in internal union affairs. He can enter union premises and inspect documents. The registrar may also cancel the registration of a union, with Labour Court approval (Annual Survey of Violations of Trade Union: Bangladesh, 2007). . 2. 2. Exclusions from union membership: Under the Industrial Relations Ordinance (IRO), workers in the public sector and state enterprises may not belong to a trade union, with the exception of railway, postal and telecommunications workers. Members of the security forces are also denied the right to form unions. Teachers are also forbidden to form trade unions, in either the public or private sector. Managerial and administrative employees can form welfare associations, but they are denied the right to join a union (Annual Survey of Violations of Trade Union: Bangladesh, 2007). . 2. 3. Right to strike not recognized: The right to strike is not specifically recognised in law. Three quarters of a union’s members must agree to a strike before it can go ahead. The government can ban any strike if it continues beyond 30 days (in which case it is referred to the Labour Court for adjudication), if it involves a public service covered by the Essential Services Ordinance or if it is considered a threat to the national interest. In this last case, the 1974 Special Powers Act can be used to detain trade unionists without charge. The government may ban strikes for renewable periods of three months. Sentences of up to 14 years’ forced labour can be passed for offences such as obstruction of transport. Strikes are not allowed in new establishments either owned by foreign investors or established as joint-ventures in collaboration with foreign investors for a period of three years from the date the establishment begins commercial production (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 2. 4. Compulsory conciliation and court referral procedures: The labour law requires that parties to an industrial dispute must follow procedures (such as request conciliation, serve notice of a strike or lock-out, or refer the dispute to the Labour Court for settlement) within a specified period or the labour dispute will be considered legally terminated. The issue or subject of an industrial dispute which is terminated in this manner cannot be raised for a calendar year after such termination (Annual Survey of Violations of Trade Union: Bangladesh, 2007). . 2. 5. Collective bargaining limited: Only registered unions can engage in collective bargaining, and each union must nominate representatives to a Collective Bargaining Authority committee, which is subject to approval by the Registrar of Trade Unions. The National Pay and Wages Commission, whose recommendations are binding, sets public sector workers’ pay levels and other benefits (Annual Survey of Violations of Trade Union: B angladesh, 2007). 2. 2. 6. EPZ Law – significant restrictions continue: The EPZ Trade Union and Industrial Relations Bill 2004 provided for the formation of trade unions in EPZs from 1 November 2006. The ILO Committee on Freedom of Association recommended numerous amendments to the law to bring it into compliance with Conventions no. 87 and 98 which Bangladesh has ratified. The government of Bangladesh has fundamentally failed to take any appreciable steps to comply with the ILO CFA’s ruling. The law foresees the phased introduction of freedom of association, providing for a different type of workers’ organisation at each stage. However, the law does not go so far as to say that trade unions with full associational rights will be allowed to exist in EPZs after the last stage outlined, which will be after 1 November 2008 (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 2. 6. Stage one – worker representation and welfare committees: Until the end of October, workers in Bangladesh’s EPZs were still operating under the first stage of the law. They were only allowed to set up Worker Representation and Welfare Committees (WRWC). The law requires all enterprises in the EPZ to have one WRWC, whose elected representatives have the power to negotiate and sign collective agreements on a limited set of topics but not to strike or organise demonstrations. However, workers and labour activists in Bangladesh reported that in 2006 employers generally refused to enter negotiations or sign an agreement with a WRWC. Under the law, all WRWCs were supposed to cease to exist on 31 October 2006, unless he employer gave an explicit agreement that the WRWC should continue (which they would in practice only do in the case of compliant WRWCs). (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 2. 7. Stage two – workers’ associations: The second stage of the law provides that a trade union, referred to as a Workers’ Association (WA) in the law, can be organised provided over 30 per cent of the workforce reque sts that the association should be set up. More than 50 per cent of the workers in the factory must vote affirmatively for the WA to be formed. This was scheduled to start on 1 November 2006 but in practice there were significantly delays, notably because the Bangladesh Export Processing Zone Authority (BEPZA) did not provide the necessary forms for applying to set up WAs. In new enterprises that start operations after 1 November 2006, workers are not permitted to form an association for the first three months after the commencement of commercial activities. Only one federation can be formed per EPZ, and over 50 per cent of the registered WA in the zone must vote to affiliate before a federation can be formed. The BEPZA Executive Chairman also has almost unlimited authority to deregister a Workers’ Association, should he determine that the WA has committed an unfair practice, contravened any part of the WA’s own constitution, violated any aspect of the EPZ Law, or failed to submit a report to him. Essentially, the law has made illegal the right of workers to talk about unions in their workplaces or to engage in pressure tactics to persuade recalcitrant employers to sign a collective agreement. Finally, the law explicitly forbids any strikes in the EPZs until 31 October 2008. (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 2. 8. Frequent bans on assembly: The law allows the government to ban any public gathering of more than four people, ostensibly only in cases where public order or public health are at risk. In fact, the government applied this banning power much more indiscriminately. (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 2. 9. Labour appellate tribunal created: The new labour law created an avenue for all the judgements, awards and sentences of the Labour Court to be appealed to a Labour Appellate Tribunal. Previously all such appeals had to be taken up by the Supreme Court, resulting in significant delays in reaching a final legal verdict for labour cases (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. Trade union rights in practice: The trade union movement is relatively weak in Bangladesh. This is partly owing to the multiplicity of trade unions and partly owing to the considerable intimidation imposed in practice, especially workers’ fear of losing their jobs should they show any sign of union activity. The right to freedom of association and to collective bargaining at the workplace is not respected in the garment sector or on the tea estates. Where unions do file applications for recognition, their registration is often delayed long beyond the 60 days foreseen by law. 2. 3. 1. Strike bans: The government makes regular use of the Essential Services Ordinance in order to ban strikes. The government’s use of this order was continuously applied over the past four years to the Power Development Board, the Dhaka Electric Supply Authority, the Chittagong Port Authority, Biman Airlines, and the Bangladesh Petroleum Corporation (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. 2. Restrictions on bargaining and union meetings: Since 2003, the government has banned any collective bargaining in jute mills during production time. Only pro-government supporters are allowed to hold meetings during work time and unions not affiliated with the government’s labour grouping are not allowed to hold protests even on their day off (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. 3. Employers take advantage of legal loopholes: Private sector workers are discouraged from undertaking any union activity. The Industrial Relations Ordinance gives considerable leeway for discrimination against union members and organisers by employers. Workers who try to create a trade union are not protected before registration and are therefore often persecuted by their employers, sometimes by violent means or with the help of the police. The names of workers who apply for union registration are frequently passed on to employers who promptly transfer or dismiss them, particularly in the textile sector. Even after registration, workers suspected of carrying out trade union activities are regularly harassed. One popular ploy is to dismiss a worker for misconduct, as they are then no longer entitled to become a trade union officer. A complaint to the Labour Court is of little use given the underlying corruption and serious backlog of cases which, in some instances, can stretch back more than several years (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. 4. Export processing zones – anti-union employers: Employers in the EPZs have been consistently hostile towards trade unions, claiming that many of the companies would be ruined and jobs would be lost if they had to have unions. Some employers in the zones take advantage of the absence of trade unions to commit violations of international labour standards, such as sexual harassment, physical violence, unpaid overtime, child labour, non-compliance with minimum wage regulations and deplorable safety conditions. Despite protections for WRWC committee members provided by the EPZ Law, discrimination against leaders of active WRWCs was reported in 2006, and an undetermined yet significant number of these leaders and activist members have been terminated with permission from the BEPZA in processes that workers claimed were biased and unfair. Since there is no dispute resolution mechanism or tribunal for workers, except to appeal to the BEPZA, workers in the EPZs had few other options but to protest. After 1 November 2006, those factories with WRWCs turned their attention to frustrating efforts of the workers to form Workers Associations, again employing a series of tactics including harassment, intimidation, and termination of leaders (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. 5. Failure to set up industrial dispute resolution mechanisms in EPZs: Although the EPZ law provides for the establishment of an EPZ Labour Tribunal and an EPZ Labour Appellate Tribunal, a full two years after the passage of the EPZ law, these two tribunals have yet to be established (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. 6. Garment industry anti-union: Textile workers outside the zones fare no better. An estimated two million women workers toil for 3,300 employers to make clothes for export in Bangladesh. Workers are regularly sacked, beaten or subjected to false charges by the police for being active in unions. The General Secretary of the United Federation of Garment Workers (UGFW) has been arrested more than a dozen times. Meanwhile, the country’s garment workers are among the lowest paid in the world. They work long hours with very little leave, and face physical, verbal and sexual abuse (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. 7. Employer negligence and government indifference kills hundreds of workers: Negligence by employers and the authorities have had appalling consequences that a strong, vigilant trade union could help to avoid. Based on its analysis of publicly available sources, the respected Bangladesh Institute for Labour Studies found that in 2006 there were 845 workers killed and 3018 injured by occupational accidents. The ready-made garment sector led the way in its toll on workers, with 141 killed, and 1578 hurt or maimed (Annual Survey of Violations of Trade Union: Bangladesh, 2007). 2. 3. 8. Ship recycling industry effectively prohibits unions: The Bangladeshi ship recycling industry is based at Chittagong Port. Workers are employed on an as-needs basis, have no contracts and do not sign any documents which could link them to a specific yard. Thus workers have no legal recourse in the event of a dispute. Largely owing to the fear instilled in them – through violence and the precariousness of their employment situation workers have no way of standing up for their rights or even claiming their dues. Any claim would provoke instant dismissal. Unions are de facto forbidden on the sites and union organisers find it very difficult to gain access.

Human Rights Law DNA Profiling A Comparative Analysis Law Essay

Human Rights Law DNA Profiling A Comparative Analysis Law Essay It has been pointed out already that no knowledge of probabilities, less in degree than certainty, helps us to know what conclusions are true, and that there is no direct relation between the truth of a proposition and its probability. Probability begins and ends with probability. John Maynard Keynes What is DNA? DNA (Deoxyribonucleic acid) is the chemical basis of life that complexes with proteins to form the chromosomes. The sequential arrangement of the individual nucleotides in DNA is responsible for the distinctiveness in any given life form.  [2]   Simply put, DNA is a genetic material that is found in tiny parts of our body such as a drop of blood, saliva, semen etc. No two persons can ever have 100% similar DNA, unless they are related by blood. Even in those cases, depending on the proximity of relationship, it can vary immensely. What is DNA fingerprinting? It is a method, by which an individual can be identified on the basis of their fingerprints. It is a less powerful tool than DNA as DNA contains information that possibly reveal way more than just identity. It could also reveal close relatives, medical history among others and hence there are human right concerns, as well as issues relating to privacy. This information gathered could easily be misused if not placed under adequate supervision in the hands of trustworthy persons. Therefore, DNA databases must be treated with extreme caution balancing privacy with its potential landmark use in criminal justice.  [3]   According to the DNA Profiling Bill, 2007,  [4]  DNA data base means a data base whether in computerized or other form, containing the indices mentioned under sub section (4) of Section 33  [5]  ,  [6]  . The American Society of Human Genetics (ASHG) statement on DNA Banking and DNA Analysis defined a DNA bank as a facility that stores DNA for future analysis  [7]   The DNA Profiling bill, 2007 defines DNA Data Bank as a computerized and consolidated DNA profile storage and maintenance facility.  [8]   DNA fingerprinting/profiling is helpful in case of criminal justice where DNA of the victims and suspects are collected from the scene of crime and then is matched in the DNA database with the sample obtained from the victim. Further, the DNA collected is also stored in the DNA Database for future use which is where the problem of privacy and rights arises.  [9]   Thus DNA profiling has raised issues regarding encroachment on human rights and unrestricted creation of DNA databases or DNA data banks heaved privacy concerns. Many countries have DNA databases and India is in the process of setting up one. In this regard, the DNA Profiling Bill, 2007 is in the pipeline but is yet to be passed by Parliament due to the above-mentioned concerns. The UK has the largest forensic DNA database in the world. The UK database already holds DNA profiles (and biological samples) from four million citizens constituting about six per cent of the population. The US CODIS database has become slightly larger in terms of the number of samples but still only represents one per cent of the population.  [10]   DNA contains information that raises much broader privacy and other civil liberties concerns. There is a requirement of changes to be made to limit the development of DNA databases, safeguard privacy and human rights. But at the same time its value in criminal investigation should not be overlooked and compromised. This research paper aims to analyze pros and cons of DNA, to throw light on current scenario of DNA Banking in India, UK and USA and to harmonise the positive and negative aspects of the technology and make it responsive to the present requirement so that neither investigation or research is compromised, nor privacy and rights of people are affected. It shall however, limit its scope to discuss whether DNA Banking is actually encroaching upon Human Rights and raises Civil Liberties concerns. Also, the DNA Profiling Bill of 2007 is analysed and any repercussions on Human Rights are discussed. II. DNA DATA BANKING, HUMAN RIGHTS AND CIVIL LIBERTIES How does DNA profiling affect Human Rights? The main issue is inclusion of DNA of any innocent person in DNA Database. The DNA from suspects are taken and put into the DNA Databank. People volunteer to give their samples to help the police in investigation. The problem arises when innocent persons on suspicion but who are not convicted are also included within this database. Thus, DNA from innocent people is also stored in databases, which will then be available to police authority to be used whenever they require and in whatever manner they want. This encroaches upon privacy, human rights and civil liberties of those innocent people as DNA is biological matter that is unique to every person and hence shouldnt be stored and misused for unnecessary purposes. Giving the police access to DNA samples, however, could enable a number of other biases to creep in, including ethnic referencing, where based on DNA, it is possible to differentiate against the race which the person belongs to, w hich certain sections of society have opposed as being racial. Effect of creation of unrestricted and unlimited databases: 1) Undermines the presumption of innocence until proven guilty Everyone charged with a penal offence has the right to be presumed innocent until proved guilty according to law in a public trial at which they have had all the guarantees necessary for their defence.  [11]   Everyone charged with a criminal offence shall be presumed innocent until proved guilty according to law.  [12]   Although the Constitution of the United States does not cite it explicitly, presumption of innocence is widely held to follow from the 5th, 6th and 14th amendments. The United States Supreme Court in Coffin v. United States  [13]  established the presumption of innocence of persons accused of crimes. In India as well, the presumption of innocence is considered as a fundamental principle of criminal justice system. The Indian Constitution provides for the protection of the innocent under Articles 20 and 21. The right against self-incrimination is also provided for in Article 20(3)  [14]  of the Constitution of India, which means that the accused is not supposed to make any statement against his will. It is a principle of common criminal law jurisprudence that is envisaged under Indian Constitution. The principle is based on another principle of common criminal law jurisprudence that a person is presumed to be innocent and it is for the prosecution to establish his guilt.  [15]   In the UK too, it is a well established principle of criminal law that a person is presumed to be innocent unless proven guilty, and this principle was emphasized upon in the landmark judgement of Woolmington v DPP  [16]  . DNA Profiling undermines the presumption of innocence until proven guilty. The decision is accepted in a plethora of cases in India. Even after the completion of a process, DNA database retains the information and thus every time a check is run through the system, innocent peoples entries is also included. Thus, a presumption of guilt exists. As has been found in the UK, including many innocent people in the database does not improve the chance of solving crimes. Instead, there are now more false matches and errors in addition to the clogging of laboratories that have been set up for DNA testing. Such a backlog could be eased if only the focus was on the guilty rather than the innocent.  [17]   The English case of R (S Marper) v Chief Constable of South Yorkshire  [18]  , in the the Court of Appeal in 2002 and the House of Lords in 2004 challenged the retention of fingerprints and DNA samples taken from individuals who have not been convicted of an offence as violation of Article 8  [19]  and Article 14  [20]  of European Convention on Human Rights. Both the courts ruled that retention of fingerprints and DNA samples either did not have an impact on private life so as to bring Article 8 into play or, if it did, was only a modest infringement. The courts also rejected the argument that the difference between the treatment of unconvicted persons who had not been arrested and were not on the database and those who had been arrested and thus were on it did not fall within the prohibited grounds of discrimination in Article 14 of the ECHR. The claimants then approached European Court of Human Rights in Strasbourg and the court in case was particularly concerned that people who had not been convicted of any offence and are entitled to the presumption of innocence would be stigmatised by being treated in the same way as convicted persons.  [21]  The Court stated that it must be borne in mind that the right of every person under the Convention to be presumed innocent includes the general rule that no suspicion regarding an [accused persons] innocence may be voiced after his acquittal.  [22]  It recognised that the retention of the applicants private data cannot be equated with the voicing of suspicions. But it stated that the perception of unconvicted persons whose biodata are on the database that they are not being treated as innocent is heightened by the fact that their data are retained indefinitely in the same way as the data of convicted persons, while the data of those who have never been suspected of an off ence are required to be destroyed.  [23]   2) Encroachment to privacy No one shall be subjected to arbitrary interference with his privacy, family, home or correspondence, nor to attacks upon his honor and reputation. Everyone has the right to the protection of the law against such interference or attacks.  [24]   In a European context, Article 8  [25]  read with Article 14  [26]  of European Convention on Human Rights assures privacy to human beings as Human Rights. In the US, the Supreme Court of the United States in Griswold v. Connecticut  [27]  has found that other guarantees have penumbras that implicitly grant a right to privacy against government intrusion. Right to Privacy is covered under Article 21  [28]  of the Indian Constitution.  [29]  It  was  held  by  the honourable  Supreme  court  in  the case  of  R. Rajagopal v. State of Tamil Nadu  [30]  that It is an established fact that every citizen has a right to safeguard the privacy of his own, his family, marriage, procreation, motherhood, child bearing and education and other matters. Similarly in the case  of Sri Banarsi Das v. Miss Teeku Dutta and Ors.  [31]  , the Honourable  Supreme  Court   held   that   submitting   to   the  DNA  test  is  violation  of  right  to privacy  under  article  21 of  the  Constitution  of  India.   The European Court of Human Rights in Strasbourg in the case of S Marper observed that since the protection of personal data is of fundamental importance to a persons enjoyment of his or her right to respect for private or family life, domestic law must afford appropriate safeguards particularly where the data is undergoing automatic processing for police purposes.  [32]  Despite the advantages of a large DNA database, other Contracting States have chosen to set limits on the retention and use of such data with a view to achieving a proper balance with the competing interests of preserving respect for private life.  [33]   In the Courts judgment, the protection afforded by Article 8 of the Convention would be unacceptably weakened if the use of modern scientific techniques in the criminal-justice system were allowed at any cost and without carefully balancing the potential benefits of the extensive use of such techniques against important private-life interests.  [34]   III. POSITION IN UK Since 1984,  DNA testing is allowed with limited use with the help of doctors to obtain samples. In 1993,  The Royal Commission on Criminal Justice recommended the setting p of a DNA database. The database was proposed as a more objective form of forensic identification, with as much potential to eliminate suspects as to secure convictions. In 1994,  [35]  The Criminal Justice and Public Order Act (CJPOA) established the NDNAD, and the police could independently take samples without assistance from a doctor. The law further unreasonably stated that if a person was subsequently found guilty, their information could be stored on the database and their sample kept indefinitely; if they were not charged or were acquitted, the data and the sample had to be destroyed.  [36]   Susequently, The Criminal Evidence (Amendment) Act in 1997 allowed non-intimate samples to be taken without consent from individuals who were still in prison having been convicted for a sex, violence or burglary offence prior to the NDNAD being set up in 1995.  [37]   The Criminal Justice Act 2003 allowed DNA profiles to be recorded without consent from anyone in jail who was suspected of any offence including minor ones. In addition, these records could be kept permanently, irrespective of his conviction or not.  [38]   In April 2004, the Criminal Justice Act, 2003 came into force. The Counter-Terrorism Act 2008 extended police powers to allow DNA and fingerprints to be used in the interests of national security.  [39]   Thus, the position regarding DNA fingerprinting and retention of DNA Profile has been constantly changing but ultimately led to violation of right of privacy of person from whom the sample has been obtained because of indefinite retention. After the Marpers case, however, the European Court of Human Rights finally quashed the indiscriminate and arbitrary retention of samples and the extent of powers given to the police of England and Wales with respect to DNA profiling. This is the first step in the correction of a potential gross misuse of these powers. Further, even the ECHR, alse recommends, In relation to the taking of samples, in paragraph 4 the Committee of Ministers recommends, The taking of samples for the purpose of DNA analysis should only be carried out in circumstances determined by the domestic law; it being understood that in some States this may necessitate specific authorisation from a judicial authority. Where the domestic law admits that samples may be taken without the consent of the suspect, such samples should only be carried out if the circumstances of the case warrants such action.  [40]   Thus, in recent times, the UK and Europe in general have finally moved forward and realized the potential dangers of having an open DNA database. IV. POSITION IN USA CODIS (Combined DNA Index System) is the DNA database for USA. Internationally, more than 40 law enforcement laboratories in over 25 countries use the CODIS software for their own database initiatives.  [41]   The first appellate court validations of DNA-matching testimony in the US were seen only in 1988, in the decision by a Florida appeals court in the case of Andrews v. Florida  [42]  , where the court accepted DNA print-identificaiton evidence linking defendant to a sexual assault.  [43]   CODIS, as compared to the other software, is relatively better equipped to deal with the issue of civil liberties and privacy, since it has divided the profiles in various parts according to the type of DNA collected such as say blood, or semen etc; separate indices for missing persons, voluntary contributors etc. have also been carefully segregated so that it is easier to identify and segregate them to ensure removal in future. However, there is no express provision regarding removal if the person is found guilty in the case of CODIS.  [44]   However, in the case of NDIS, i.e. (The National DNA Index System), samples are collected only in accordance with state laws, and are to be disposed off if the persons are not guilty. However, the FBI, along with 15 states, have decided to expand DNA collection efforts in April 2009 to include those who are awaiting trial as well as detained immigrants. With this expansion the bureau estimates an additional 1.2 million samples per year by 2012. This definitely raises concerns about the inclusion of several innocent people who, in all probability, havent even committed a single crime.  [45]   In the case of US v. Kincade  [46]  , a 9th circuit Court of Appeals decision, the defendant appealed after a federal district judge sentenced him for violating the terms of his supervised release by refusing to submit a blood sample for DNA testing. The Court of Appeals held that the requirement under the relevant Act that certain federal offenders who were on parole probation or supervised release submit to compulsory DNA profiling, even in the absence of individualized suspicion that the had committed additional crimes, was resasonable and did not violate the 4th amendment.  [47]   The position relating to privacy rights is yet to be settled in the US though, as it desperately awaits a Marper-like law as was in the UK. V. POSITION IN INDIA There is no DNA Data Bank existing at this point of time in the country though DNA Profiling technology does exist and DNA Profiling is being done at Centre for DNA Fingerprinting and Diagnostics (CDFD), Hyderabad. But there is no mechanism established by law for storage of DNA Profiles. Further, no legislation pertaining to the same has been passed till date. The DNA Profiling Bill, 2007  [48]  was introduced with an objective to enhance protection of people in the society and administration of justice, analysis of DNA found at the scene of crime, of the victim or offender has been used to establish identity. It also provides for eminent persons, molecular biologists, law enforcement officers etc. to set about appropriate standards for labs, as well as the creation of the position of a DNA Databank  [49]  Manager who would be in charge of supervision, execution and maintenance of Databanks.  [50]  Further, a DNA Profiling Board comprising of eminent molecular biologists, forensic experts etc. is appointed  [51]  , and its powers and functions according to Section 13 of the Bill include mainly ensuring practices followed by the relevant bodies are in accordance with privacy statutes, in order to protect confidentiality etc. Chapter-VII (Sections 33-37) of the Bill provides for establishment and conduct of DNA Data Bank and provisions ancillary to it. Section 33 provides for establishment of DNA Data Banks both at Central and State level by their respective governments though a notification in official gazette. The National Bank is essentially comprised of the DNA data that has been given by the State Banks. As followed by the NDIS in the US, India also proposes to segregate the DNA profiling into indices, such as crime-scene index, a suspects index, an offenders index, a missing persons index, unknown deceased persons index, a volunteers index etc. to enable better identification. Here the crucial point is regarding retention of data of volunteers. Once the investigation is over there is no purpose to keep volunteers in the record, their privacy rights are being violated in that case. 33(6) of the Bill states that the Date Bank shall contain the identity of the person from whose body substance or body substances the profile was derived in case of a profile in the offenders index and the case reference number of the investigation associated with the body substance or body substances from which the profile was derived in case of all other profiles. This provides a benefit to volunteers as their identity is not retained only the offenders identity is retained. Section 34 provides for Matching of profiles where DNA samples are matched with the DNA profiles in the Data Bank. Once this is done, it is given to the relevant Courts or tribunals that then decides on the basis of these evidence. In order to interlink our Database with foreign databases to enable better criminal identification, Section 35 provides for exchanging information regarding DNA profiles with other international Governments or Organisations, but only with prior approval from the Government. Often, the DNA of even victims is required in the process of finding the perpetrator of the crime. This could lead to a situation where it could be grossly misused if not protected. In order to protect the confidentiality of victims, Section 36 restricts the access to information with regards to victims of offences; as well as persons who have ceased to be suspects. However, information relating to convicts is kept indefinitely unless he has been acquitted. Section 37 further gives effect to rights of persons whose conviction has been set aside by providing for expunging of their records from the data bank. As the bill has not been passed yet, not much can be concluded with regard to encroachment of Human Rights of people whose DNA will become a part of DNA Databank. Most important is proper implementation of the Act, if the bill is passed. Mainly, it is important to take into consideration, the debate that the Marper case has brought forth in order to harmonise Human Rights with criminal investigation. VI. CONCLUSION ROAD TO THE DNA PROFILING BILL, 2007 This is an era of technology and DNA profiling is quickly advancing. Every coin has two sides, similarly technology has its pros and cons. There is a scope of error, encroachment upon the privacy etc., but the benefits of DNA profiling to criminal investigation system cannot be overlooked. However, society must be warned of the repercussions of a technology. At the same time there is a need for legislatures to see that the negative impact of it can be either avoided or done away with so as to not hamper Human Rights and Civil Liberties of the people at large. Also it should be taken into consideration that the benefits of it are enjoyed to the fullest. A few suggestions that the author places forward are as follows : Databases of those individual who are found innocent shall be eliminated and shall not be retained at all. Importance needs to be placed to the concept of informed consent before taking the DNA of an innocent person (note that innocent here includes suspects, a person is guilty only on conviction). Law enforcement agencies should make sure that taking DNA without consent, or through trickery or fraud will be a punishable offence under the IPC. Data Banks that permanently hold DNA data should be used sparingly only to include convicts who have been convicted of serious offenders. Further, any information that could lead to any bias against them, or any other member of their family is to be kept extremely confidential or deleted. The DNA Profiling Bill, 2007 is well drafted and there are provisions regarding deletion and retention of DNA Databases. But it should be kept in mind that volunteers shall be adequately protected for which not much is expressed in the legislation. Any legislation must take into account the pros and cons and indulge in an informative debate before deciding upon its feasibility in a country like India. While its benefits in the criminal justice system cannot be overlooked, particularly in cases of Serial offenders, and in reducing the costs of identifying future offenders; the very basic core of human rights and legal principles relating to innocence cannot be ignored. It is the authors sincere hope that the Indian legislation, if passed shall take into consideration these matters of grave importance, before implementing at this groundbreaking legislation that could change the criminal justice system forever, for the better.

Virgils Aeneid - Is Aeneas Really a Hero? :: Aeneid Essays

Virgil's Aeneid - Is Aeneas Really a Hero?    Thesis: Despite his accomplishments and the glory associated with his life, Aeneas only achieves the status of hero through divine intervention, and this god-given position causes him just as much grief as it does splendor. What is a hero?   We would like to think that a hero is someone who has achieved some fantastic goal or status, or maybe someone who has accomplished a great task.   Heroes find themselves in situations of great pressure and act with nobility and grace. Though the main character of Virgil's Aeneid, Aeneas, is such a person, it is not by his own doing.   He encounters situations in which death is near, in which love, hate, peace, and war come together to cause both good and evil.   In these positions he conducts himself with honor, by going along with what the gods want.   Only then goes on to pave the way for the Roman Empire.   His deeds, actions, and leadership would never have come to be if it were not for the gods.   The gods took special interest in Aeneas, causing him misfortune in some cases, giving him assistance in others.   On the whole, the gods constantly provide perfect opportunities for Aeneas to display his heroism. Without them, Aeneas woul d not be the hero he is.   This gift does not come without a price, though; he must endure the things heroes endure to become what they are.   Despite his accomplishments and the glory associated with his life, Aeneas only achieves the status of hero through divine intervention, and this god-given position causes him just as much grief as it does splendor. Aeneas is the son of Venus.   This fact alone brings about much of the hero in him.   Venus, a concerned mother, always looks out for her son.   She does everything she thinks will help to ensure his safety and success.   At the beginning of his journey from Troy, she prevents his death at sea.   Juno has persuaded King Aeolus to cause vicious storms, rocking Aeneas' fleet and nearly killing all of   them.   Venus then goes to Jupiter and begs him to help Aeneas: Venus appealed to him, all pale and wan, With tears in her shining eyes: "My lord who rule The lives of men and gods now and forever, And bring them all to heel with your bright bolt, What in the world could my Aeneas do, What could the Trojans do, to so offend you?

Fight to Maintain Freedom of Speech on the Internet :: Exploratory Essays Research Papers

Fight to Maintain Freedom of Speech on the Internet       Imagine yourself trapped inside another world, a world where your essence is made entirely of words that can say whatever you desire. You could be young or old, male or female or neither, you are only as limited as your imagination. Now Imagine that someone wants to have a say in what can be said, seen, and done in this brave new world, what would this change, and more importantly who decides what's 'good' and what's 'bad'?    In the ordinary and mundane world of real life people have always fought for the pursuit of happiness, free speech, etc. They are subjects which have always shouted in the hearts of our nations heroes, and rightfully so. What would our world be like if the government controlled what we were allowed to see and to say? It seems that George Orwell described it best in his book 1984 when he gave the scenario of a society in which people who committed the heinous act of thoughtcrime, the act of thinking something that goes against the party line, mysteriously disappeared into the night never to be seen again. Thankfully, the hordes of would be 'thought police' members have been staved off throughout history and we have achieved a relatively liberal society where people are, for the most part, able to speak their minds openly. Well, even in today's world there are still people who get pissed off when they think that free speech goes to far and they say something about it. This brings me to my main point.    The Internet. A land made possible in 1968 by the Dept. of Defense with the idea that if all other lines of communications were destroyed in the advent of war then at least we'd have computers, (I don't know, maybe they thought the electricity might magically produce itself after the bombing stopped). Any ways, thankfully the Internet has evolved beyond that into something which encompasses just about every possible human interest out there. A hodgepodge of political ideals ranging from big business capitalism to the gender erasing equality of the socialist mindset make the Internet a place where conflicts of interest often arise.

Life Is A Journey Compare and Contrast Essay

Life is a journey that begins when you are born. Through this journey, we see and hear many things that change the way we think about the people who influence us as well as the world around us. Jack Kerouac’s On the Road, is a great example of the theme â€Å"life is a journey†. This novel is about two characters, Sal Paradise, a young writer, and Dean Moriarty, a wild youth who lives life to the fullest. Together they go all around America; their journeys include traveling through the wilderness, small towns, jungles, and deserts. The Miraculous Journey of Rubin Carter by James S. Hirsch is a story about a boxing legend that is framed by a crooked cop for a murder he didn’t commit. Carter spent twenty-two years of his life in prison for something he didn’t do, but instead of feeling sorry for himself Carter tried to do everything in his power to prove his innocence. He wrote an autobiography in prison, which ultimately helped in bringing out the truth and he would receive his justice. see more:city and village life There are many different themes in On the Road, but life is a journey is the strongest theme in this novel. By reading the title alone this theme is dominant, because Sal and Dean are constantly traveling from one place to another. Sal is a confused person, who can’t decide whether to live a traditional life by settling down and starting a family or to travel around enjoying life like his friend Dean. Dean lives a life free of burden, and responsibility and he seems happy throughout the novel. He is the probably the most interesting character in On the Road because he is essentially what all the other characters in the novel want to be. Dean fascinates Sal, and they become really close friends. They begin a restless journey going back and forth across the country. They go to Denver, California, New Orleans, San Francisco, New York, and then Mexico City. Sal starts off the book as being depressed, gains happiness, confidence, and falls in love at the end. The theme of life is a journey is also a very prominent theme in The Miraculous Journey of Rubin Carter. Carter goes from being a contender for the middleweight boxing crown to jail, charged with murders. The trial was racially biased, because Rubin Carter and John Artis, an acquaintance of Carter’s, were the only black people in the court room, both innocent men were sentenced to life in prison. While in prison, Carter refused to behave like a guilty man by not wearing the prison uniform, or eating prison food,  and refusing to see a parole officer. He wrote an auto-biography entitled The Sixteenth Round: From Number 1 Contender to #45472, with this book he would meet a group of Canadians that would help him become a free man. Carter lost his family, boxing career, and 22 years of his life, but he refused to allow the bitterness overcome him. When Carter was finally released in 1988, he said: â€Å"If I have learned nothing else in life, I’ve learned that bitterness only  consumes the vessel that contains it. And for me to permit bitterness  to control or infect my life in any way whatsoever, would be to allow  those who imprisoned me to take even more than the twenty-two years they’ve already taken. Now, that would make me an accomplice to their crime†¦Ã¢â‚¬  Life is not a still or short-lived event. It is a process of travel, a journey with many ups and downs. The characters in both On the Road and The Miraculous Journey of Rubin Carter went through many different emotions. Both novels had unique journeys through life, with both ending in a positive way.

Number one Analyze

Meaning: to identify and examine the basic elements or parts of (something) especially for discovering interrelationships Asses: : to determine the importance, size, or value of Compare: to describe as similar Describe : to give a representation or account of in words Discuss: to talk about (an issue) usually from various points of view and for the purpose of arriving at a decision or opinion Illustrate: to show or make clear by using examples Pizza hut has been around for many years.Today, it is considered one of the biggest fast food restaurants around the world. Pizza hut exists in many countries, and although its menu is the same around the world, it learned to adapt to every country culture and heritage by providing services and products that are advertised and sold according to the country itself. Pizza Hut started with only pizzas. And nowadays his menu has expanded and includes everything from pastas, appetizers, kids menus, salads, and of course the pizzas. It took a long ti me to expand the menu, but with the right advertising, pizzaHut did not have any problem. Until now, pizza Hut still works hard on advertising. Everybody knows pizza Hut through commercials, billboards, flyers, and of course the internet. There is a new deal, new promotion every so often. Having the right product and a good advertising team is not enough. A good restaurant should always worry about its services and always pay attention to the customer needs. A SWOT analysis shows the strength, weaknesses, opportunities, and threats Pizza Hut is going through in Lebanon.After taken over the market with ts pizza menu, Pizza Hut introduced a wider variety menu which includes pastas, and salads. The customers can now visit Pizza Hut even if they do not feel like having a pizza. It also introduced a PHD (pizza hut delivery) service, which is available in almost every town but it does not have many dine in locations comparing to other fast food restaurants such as McDonalds and Burger kin g. One of Pizza Hut regular customers, my friend Edward, spends most of his time eating pizza, and praises about Pizza Hut services and products.

A Review of the Article “Obama Presses BP to Recover More Oil”

Containment of oil from the recent spill at the Gulf of Mexico, estimated to be 60,000 barrels a day, has been delayed by the presence of high winds and waves from Hurricane Alex (Broder, para.2). However, according to Broder, there is a period of seven days of predicted calm weather in which President Obama has pressed BP to recover more oil.In response, BP will attach an oil recovery ship known as the Helix Producer to the gushing well capturing up to 25,000 barrels a day (Broder, para. 2). This will be done simultaneously with deployment of a new, tighter-fitting cap for the well. The combination will capture up to 50,000 barrels and another 30,000 barrels a day from additional ships before the well is killed by mid-August (Broder, para.12)The author’s bias is depicted via his efforts in bringing out the attempts of BP in managing the oil spill. For instance the article states that work is going on in two separate relief wells that may permanently kill the gushing well (Bro der, para.7). Moreover, he cites high winds and waves from Hurricane Alex as an explanation for the delays in capturing the spew and capping the well (Broder, para. 2).The purpose of this article is to inform the public on the status of the crisis and the actions being taken to control the oil spill. For example, the author reports that the delayed control of the oil spill from the gulf is as a result of unfavorable weather conditions (Broder, para.3). He also explains that BP will replace the cap with a new, tight-fitting one in a bid to contain the spill. Additionally, BP will use recovery ships to collect 80,000 barrels a day (Broder, para.13).The target audience of this article is the general public. This is evident as the article reports on the communication that takes place between BP and the Obama administration. For instance, the author notes that the administration sent BP a letter seeking clarification on how it planned to minimize the oil flow during the capping of the we ll (Broder, para.5).The author gives an insight into the latest developments in the management of the oil spill disaster. The concerned authorities in Latin American countries for example Mexico and Cuba are made aware of the magnitude of the problem.The author states that there is an oil spill of about 60,000 barrels a day into the Gulf waters (Broder, para.13). It implies that the oil spill may reach Latin American shores causing serious damage. This has prompted the Latin American countries to offer assistance in tackling the oil spill. For instance, Mexico has offered two vessels equipped for oil skimming and 2.6 miles of boom. Further south, Brazil has helped in the crisis through technical expertise (Jordan, para.2).The oil spill of this magnitude requires cooperation between the Government and BP. It is important that the crisis is resolved quickly to avert more losses. BP should exploit every positive opportunity such as the duration of the calm weather to complete capping t he well. In addition, support offered to the Government by the Latin American countries for example Mexico and Cuba is welcome. This is because they have vested interests in seeing this problem tackled or else they too would be adversely affected if the spill reached their shores.Works Cited Broder, John M. Obama Presses BP to Recover More Oil. July 2010. 28 July 2010 . Jordan, Levi J. Oil Spill Diplomacy: The Response from the Americas. 2010. 28 July 2010 .

Solder Joint In Electronic Engineering Essay

Electronic makers throughout the universe have a long history of utilizing lead-based solders. These solders have proven to be cost effectual and high reliable, and are solidly integrated into fabricating methods and procedures. Driven by statute law chiefly in the European Union i.e. WEE, RoHS, EEE Directives, makers are concrete the manner for taking lead solder from all electronics assemblies. However, the credence of nonleaded solder posses many draw dorsums. Conversion to RoHS ( Restriction of Hazardous Substance ) compliant parts must include the full merchandise development and fabrication procedure. To electronics makers, one of the most of import facets in the procedure is guaranting the nonleaded solder articulation dependability is equal to or greater than that of their current leaded solder composings. Manufacturers are working independently to formalize dependability for their nonleaded electronic constituents and systems. Likewise, industry organisations and other research workers have developed proof plans that attempt to understand failure mechanism associated with nonleaded merchandises, generate dependability acceleration theoretical accounts, and predict the dependability of nonleaded solder articulations. Several theoretical accounts of lead free solder articulation dependability non mature plenty yet to enable alone demand of aerospace and military intent. Several factors affect solder articulation dependability, i.e. portion geometry, solder drosss, and external environmental emphasiss. Rapid thermic cycling has been an effectual environmental stimulation capable of bring oning weariness on solder articulations, peculiarly with stuffs holding mismatched thermic enlargement coefficients. Mechanically induced quiver is another external emphasis that efficaciously evaluates solder joint dependability. Thermal cycling can bring forth high supplanting emphasiss at low rhythm frequences, whereas mechanical quiver can supply low supplanting emphasiss at high frequences and high rhythm counts. A peculiar type of trial equipment and methodological analysis capable of using a combination of rapid thermic cycling and quiver is Highly Accelerated Life Testing ( HALT ) . Circuit boards range from simple individual moulded plastic boards with Cu music directors on one or both sides to multilayer boards with Cu music directors, each bed being separated by a insulator and interconnected by metal music directors. Minimum line breadth and spacing between lines is less than 100 A µm. The board typically is made from a composite such as an epoxy with superimposed sheets of woven fiberglass. The dielectric stuff between beds of music directors is normally a polymer, for illustration polyimide. To keep solder ability, the exposed Cu may be coated with an inhibitor such as benzotriazole or with a solder greatcoat. Components are attached to the board with solder or metal-filled conductive adhesives. Fully assembled boards may be farther protected against wet, taint, and mechanical harm by a screen coat. ( Steinberg D,1988 )1.2 SOLDER JOINT RELIABILITY AND FAILURESolder articulations widely used in the electronic packaging industry to bring forth good electri cal, thermic, and mechanical connexions between the bundle and the printed circuit board. Twenty per centums of the mechanical failure in airborne and mechanization electronic cause by quiver and daze. Design appropriate step to guarantee the survival equipment in the daze and quiver environment is necessary to make so. Staying 80 per centum of mechanical failure related to thermic emphasiss ensuing from high thermic gradients, coefficient of thermic enlargement and high coefficient of snap. Solder joint failure occurs in several grounds: Poor design of the solder articulation A bad solder articulation intervention Solder stuff Excessive emphasis applied to solder articulations. In general, nevertheless, the solder articulation failures are merely graded harmonizing to the nature of emphasis that have caused. Most joint failure falls into three major classs: Fatigue failure due to cyclic emphasis application Due to the execution of a long term or lasting burden The emphasis is due to overloading in the short term Reflow profile besides has a important function on solder articulation reliablity. Because It besides has a high influence micro construction of the solder articulation. Vibration failure of solder articulations is assessed for dependability utilizing high accelerated life trial, which is represented by a GRMS- clip curve. For surface saddle horse microelectronic constituents, an estimate of printed circuit board ( PCB ) theoretical account analysis can be made by presuming PCB as a bare unpeopled thin home base because the addition in stiffness of PCB due to the climb of the constituents is about offset by the addition in entire mass of the populated PCB. However, this estimation can direct to mistakes in natural frequence computation for different bundle profiles, for flip-chip-on-board ( FCOB ) and plastic-ball-grid-array ( PBGA ) assemblies. When the constituent has little profile, the estimate of PCB assembly as a bare PCB can supply acceptable average analysis consequences because the stiffness and mass part of little constituent to PCB assembly is non considerable. In this trial, changing GRMS-level random quiver trial for PCB assemblies were conducted. In order to cipher the dependability of PCB assembly, it is necessary to carry on the dynamic analysis.1.3 PROJECT PURPOSEIn this modern universe due to the causes of wellness and environmental issues the electronic fabrication industries confronting a challenging job of necessity to bring forth dependable solder merchandises in really high denseness with really low cost. Solder articulations are really of import to the dependability of Printed Circuit Boards ( PCB ) . This is a 1 of the taking factor in transmittal of electrical and thermic connexions. In instance of every PCB even a smaller solder articulations are really of import. So this undertaking investigates the Effect of quiver on solder articulation dependability in electronics assembly applications. Solder articulation of an electronic assembly is really of import measuring because of this theoretical account based survey might assist applied scientists efficaciously better the PCB mechanical design and therefore better dependability of electronics attached to the PCB by sing practical uncertainnesss and inauspicious quiver environments. This experiment attempted to research the usage of HALT to measure the dependability of solder articulations. For this trial, samples of PCB ‘s arranged and tested on an Environmental testing chamber. The trial program included a response where, as samples become displaced from the printed circuit board ( PCB ) , . In add-on, a solder joint life distribution would be bring forthing depicting comparative public presentation between Sn95.5/Ag4.0/Cu0.5 vs. Sn42Bi57Ag1 solder paste. The consequence of this trial did non bring forth the sequence of failures necessary to be after the life informations ; nevertheless the procedure of proving revealed near by into the application of HALT as a technique to contrast the public presentation of PCB soldered constituents. ( Steinberg D,1988 ) The overall research methodological analysis that has been followed during the undertaking is illustrated in Figure 1.1. There are six distinguishable stairss: Literature Survey, Project Planning, Design of Experiments, Experimental work, Analysis of consequence and Conclusion, and Documentation and Presentation. Literature Survey Design of Experiments Undertaking planning Experimental Work Analysis of Results and Conclusion Documentation and Presentation Figure 1.1: Undertaking MethodologyChapter 2LITERATURE REVIEW2.1 SINUSOIDAL VIBRATION TESTINGDynamic warps of stuffs caused by quiver can do jobs and malfunctions including failed electrical constituents, deformed seals, optical and mechanical misalignment, cracked or broken constructions, inordinate electrical noise, electrical trunkss, chafed wiring. Because sine quiver represent largely a certain cardinal frequence and the harmonics of that cardinal, in its pure province, this type of quiver is generated by a limited important figure of beginnings. Expressed as amplitude versus frequence, sine quiver is the type of quiver generated in the field by beginnings such as engine rotational velocities, propellor and turbine blade transition frequences, rotor blade transition and launch vehicles. While much of â€Å" existent universe † quiver is random, sine quiver proving accomplishes several of import ends in merchandise ability and proving. Much stuff and completed merchandise was modelled on some type of sine quiver signature. A sine expanse of frequences will reason whether the premises were right and if the divergences are considerable plenty to do design alterations. In other words, expanse will set up if the imagined frequence has been met and/or discovers the trial point cardinal frequence. Similarly, a expanse will assist place the trial capable resonance frequences, which may be the points at which the point experiences peculiarly nerve-racking warps. Some of the undermentioned trials include fixed frequence at higher degrees of the commanding variable ( displacement, speed, acceleration ) , and random quiver. Another typical sinusoidal quiver trial, sine explosion such as the teardrop, goes quickly to top out pulsation and so decays at lower rate ( to forestall harm to the unit ) . The burst trial puts a maximal burden into an object at a rapid rate and peculiarly emphasiss articulations and seams to place craft and design issues.2.2 RANDOM VIBRATION TESTINGThe genuineness of random quivers an effectual tool of testing craft defects came about during fabrication. Up until that limited hertz sine was applied during dependability proving. Pure sinusoidal quiver is composed of a individual frequence at any given clip. Comparisons trials revealed that to be the effectivity of random quiver. The trial point will hold to be subjected to many sine frequences over a longer period of clip, and may by happenstance weariness the trial point. Random quivers undercover defect faster. Another fluctuation would be a swept sine on random trial. In random quiver nevertheless, all frequences happening at the same time. Because of this, random quiver analysis normally performed over a big scope of frequences, say from 20Hz to 2000Hz. Research workers are non looking at a specific frequence, specific minute in clip or specific anything else ; They are statistically looking at a construction response to a given random quiver environment. Decidedly be cognizant about any natural frequences that cause a big random response at any open frequence degree, but largely all the experiments taking the overall response of the construction. Random quiver analysis looks at random accelerations or forces over a scope of frequences, which we call the frequence sphere. ( These random inputs are merely sustained over a period of clip, but are non time-dependent ; i.e. , the longer the period of clip, the better the statistical sampling in the frequence sphere. ) The scope of frequences is called a spectrum. Therefore, this is called by Spectral Density. Normally, if accelerations consider in trial, for that Acceleration Spectral Density ( ASD ) have to utilize.2.3 SINE ON RANDOM VIBRATION TESTINGVibration sine on random testing is executing by superposing a sine moving ridge on top of a random environment. A sine on random quiver trial replaces the combined environment of a spinning chopper blade with its distinguishable resonant degrees and the remainder of the aircraft which generates random engine and aerodynamic induced quiver. Gunfire on board an aircraft causes sine quiver while the remainder of the aircraft generates random excitements. These types of trials are doubling quiver Characterized by dominant extremums ( sinusoids ) superimposed on a broadband background. 2.4 Real WORLD SIMULATION. Most quiver in existent universe is random for illustration a vehicle traveling over route feels random quiver from the route abnormalities. Land launched projectile vehicles exposed to non stationary quiver during its flight, the motor ignites the projectile travel through the ambiance, the motor burn terminals and so forth even in flying when subjected to turbulent air flow, undergoes random quiver. Random quiver is composed of battalion of continues spectrum of frequences. Movement varies indiscriminately with clip. It can be accessible in the sphere by a power spectral denseness map [ G2/Hz ] .2.5 HIGHLY-ACCELERATED LIFE TESTING ( HALT )HALT involve quiver proving in all three axes with a random manner of frequences. at last, HALT proving can include the real-time cycling of multiple environmental variables, for illustration, temperature cycling plus quiver testing. This multi-variable proving attack provides a closer appraisal of real-world operating environments. Unlike usual testing, the end of HALT proving is to interrupt the specimen. When the merchandise fails, the weakest point is recognized, so applied scientists know closely what demands to be done to develop merchandise quality. After a merchandise has failed, the weak constituents are upgrade or toughened. The revised specimen is so subjected to an extra unit of ammunition of HALT proving, with the scope of temperat ure, quiver, or floor further increased, so the merchandise fails once more. This identify the following weakest point. By traveling through several proving like this, the merchandise can be made rather strong. With This familiar attack, merely the weak musca volitanss are identified for betterment. This type of proving supply so much information about the assembly and public presentation of a merchandise, that it can be rather supportive for newer applied scientists assigned to a merchandise which they are non wholly familiar. HALT proving must be performed during the design period of a merchandise to build the basic design is dependable. But it is indispensable to observe that the units being tested are likely to be hand-made technology paradigm. At suggestion, we have found that HALT proving should besides be performed on existent industry units, to guarantee that the passage from technology design to production design has non resulted in a loss of merchandise quality or hardiness. Some applied scientists may see this attack as scientifically sensible, but economically impractical. though, the cost of HALT proving is much a lesser sum of than the cost of field failures.2.6 HIGHLY-ACCELERATED STRESS SCREENING ( HASS )HASS testing is an ongoing showing trial, performed on usual production units. Here, the thought is non to damage the merchandise, but instead to verify that existent industry units continue to run decently when subjected to the cycling of ecological factors used during the HASS trial. The bounds used in HASS proving are based on a skilled probe of the HALT proving parametric quantities. The importance of HASS proving can be suited when 1 considers today ‘s typical production scenario. Natural stuffs are purchased from a seller who uses stuffs purchased from other sellers. Components and sub-assemblies are obtained from makers all over the universe. The finishing gathering of the merchandise is performed by a subcontractor. This manner that the quality of the concluding merchandise is a function of the quality of all the constituents, stuffs, and procedures which are a portion of that concluding merchandise. These constituents, stuffs, and procedures c an and make alter over clip, in that manner impacting the worth and dependability of the concluding merchandise. The best manner to guarantee that fiction units continue to run into dependability aims is through HASS testing.2.7 RELIABILITYDependability is definite as the chance that a device will execute its required map under stated conditions for a exact period of clip. predict with some grade of Confidence is really dependent on right specifying a figure of parametric quantities. For case, taking the sharing that matches the information is of primary importance. If a right distribution is non chosen, the consequences will non be dependable. The confidence, which depends on the sample size, must be adequate to do right determinations. Individual element failure rates must be based on a big adequate population and of import to truly reflect present twenty-four hours normal uses. There are experimental considerations, such as influential the incline of the failure rate and cipherin g the activation power, every bit good as ecological factors, such as temperature, humidness, and quiver. eventually, there are electrical stressors such as electromotive force and current. Dependability technology can be slightly conceptual in that it involves much statistics ; yet it is technology in its most reasonable signifier. Will the design execute its proposed mission? Product dependability is seen as a grounds to the stamina of the design every bit good as the unity of the category and fabricating committednesss of an societies. One of the rudimentss of understanding a merchandise ‘s dependability requires an apprehension of the estimation of the failure rate. The conventional method of finding a merchandise ‘s failure rate is through the usage of accelerated quiver runing life trials perform on a sample of Devicess. The failure rate obtained on the life trial sample is so extrapolated to end-use fortunes by agencies of prearranged numerical theoretical accounts to give an appraisal of the failure rate in the field application. even though there are many other emphasis methods engaged by electronic assembly makers to to the full separate a merchandise ‘s dependability, the informations generated from operational life trial sampling is the major method used by the production for gauging the failure rate of a electronic assembly in field service.Failure Rate ( I » )Measure of failure per unit of clip. The utile life failure rate is based on the exponential life distribution. The failure rate typically decreases somewhat over early life, so stabilizes until wear-out which shows an increasing failure rate. This should happen beyond utile life.Failure In Time ( FIT )Measure of failure rate in 109 device hours ; e. g. 1 FIT = 1 failure in 109 device hours.Entire Device Hours ( TDH )Th e summing up of the figure of units in operation multiplied by the clip of operation.Average Time between failures ( MTBF )Dependability is quantified as MTBF ( Average Time Between Failures ) for repairable merchandise and MTTF ( Average Time To Failure ) for non-repairable merchandise. A right apprehension of MTBF is of import. A power supply with an MTBF of 40,000 hours does non intend that the N = Number of units under trial. If the MTBF is known, one can cipher the failure rate as the opposite of the MTBF. The expression for ( I » ) is: where R is the figure of failures. Once a MTBF is calculated, chance can deduce from following equation:R ( T ) = e-t/MTBFConfidence Level or Limit ( CL )Probability degree at which population failure rate estimations are derived from sample life trial. The upper assurance degree interval is used.Acceleration Factor ( AF )A changeless derived from experimental informations which relates the times to failure at two different emphasiss. The AF allows extrapolation of failure rates from accelerated trial conditions to utilize conditions. Since dependability informations can be accumulated from a figure of different life trials with several different failure mechanisms, a comprehensive failure rate is desired. The failure rate computation can be complicated if there are more than one failure mechanisms in a life trial, since the failure mechanisms are thermally activated at different rates. Equation 1 histories for these conditions and includes a statistical factor to obtain the assurance degree for the resulting failure rate.The Bathtub CurveThe life of a population of units can be divided into three distinguishable periods. Figure 1 shows the dependability â€Å" bathtub curve † which theoretical accounts the cradle to sculpt instantaneous failure rates vs. clip. If we follow the incline from the start to where it begins to flatten out this can be considered the first period. The first period is characterized by a decreasing failure rate. It is what occurs during the early life of a population of units. The weaker units die off go forthing a population that is more strict. This first period is besides called baby mortality period. The following period is the level part of the graph. It is called the normal life. Failures occur more in a random sequence during this clip. It is hard to foretell which failure manner will attest, but the rate of failures is predictable. Notice the changeless incline. The 3rd period begins at the point where the incline begins to increase and extends to the terminal of the graph. This is what happens when units become old and get down to fail at an increasing rate.Figure 2.1 bath bath curveReliability Predictions MethodsA batch of clip has been spent on developing processs for gauging dependability of electronic equipment. There are by and large two classs: ( 1 ) anticipations based on single failure rates, and ( 2 ) demonstrated dependability based on operation of equipment over clip. Prediction methods are based on constituent informations from a assortment of beginnings: failure analysis, life trial informations, and device natural philosophies. For some computations ( e.g. military application ) MIL-HDBK-217 is used, which is considered to be the standard dependability anticipation method. A simple failure rate computation based on a individual life trial would follow equation 1. I »iˆ = failure rate. TDH = Total Device Hours = Number of units x hours under emphasis. AF = Acceleration factor, Since dependability informations can be accumulated from a figure of different life trials with several different failure mechanisms, a comprehensive failure rate is desired. The failure rate computation can be complicated if there are more than one failure mechanisms in a life trial, since the failure mechanisms are thermally activated at different rates. Equation 1 histories for these conditions and includes a statistical factor to obtain the assurance degree for the resulting failure rate where, I » = failure rate in FITs ( Number fails in 109 device hours ) I? = Number of distinguishable possible failure mechanisms K = Number of life trials being combined eleven = Number of failures for a given failure mechanism I = 1, 2, †¦ I? TDHj = Total device hours of trial clip for life trial J, J = 1, 2, †¦ K AFij = Acceleration factor for appropriate failure mechanism, I = 1, 2, †¦ K M = I §2 ( I ± , 2r +2 ) / 2 where, I §2 = qi square factor for 2r + 2 grades of freedom R = entire figure of failures ( I? xi ) I ± = hazard associated with CL between 0 and 1.2.2 SOLDER PASTERole Of Solder Paste In ReflowingSolder paste is a combination mixture of a flux composing and a extremely grinded, powdered solder metal metal that is usually used in the electronics industry to soldering procedures. And besides it is call as a attachment medium between the device interconnectedness characteristics and the PCB itself. The constituents of a solder paste are specially designed for first-class printing and reflow features. In normal instance of the surface saddle horse soldering procedure involves puting the substrate and a little sum of solder paste in a printed circuit board. After that the system will be heated until the solder reflows, forms an electrical connexion between the solder tablet and the electrical contact of electronics portion. After this reflow finished it forms both an electrical and mechanical connexion between the electronics constituents and the printed circuit board.Selection Criteria Of A Solder PasteChoice of a solder paste is really of import factor for reflowing procedure, dependability & A ; its quality. The undermentioned factors are considerable for a good solder paste [ 6 ] . The size of the solder metal atoms which are in the solder paste The inclination to organize nothingnesss The belongingss of the flux medium of the solder paste Alpha atom emanation rate The design of the stencil to be used for publishing Thermal belongingss of the solder paste Electrical belongingss of the solder pasteChapter 03MATERIALS AND EXPERIMENT METHODOLOGY3.1SOLDER PasteThe inside informations of solder paste used in the experiment are given in the undermentioned tabular arrayPCB noAlloy1 & A ; 2 Sn95.5Ag4Cu0.5 3 & A ; 4 Sn42Bi57Ag1 Table 3.1. types of solder paste used in experiment For this undertaking all above solder paste should be in a container with appropriate labelling and designation on it to separate it from the Tin – lead solder paste. The solder paste should be stored in a icebox between 35 – 45F. and should be allowed to come room temperature for minimal four hours before making the solder paste printing. Once it has finished the utilizing solder paste must replace to the icebox since it can non be at room temperature over 24 hours. The self life of the lead free solder pastes may be cut downing from the typical six month. The above guidelines are purely followed in this undertaking. Because it is non merely for warrant the quality of solder paste but besides a good manner to cut down the mistakes that may impact the concluding consequences of the undertaking.3.2 SOLDER PASTE PrintingImportant of Solder Paste PrintingSurface mount engineering ( SMT ) is used extensively in the electronics industry. Surface saddle horse constituents are potentially more dependable merchandises can be designed and manufactured utilizing the SMT. The solder paste stencil publishing procedure is really critical and of import measure in the surface saddle horse manufacting procedure. Most of all the bonding defects are due to jobs covering with the showing procedure. Stencil printing procedures have major cautiousnesss in operation and put up stairss. When we are supervising these factors carefully we can minimise the defects. The chief intent of publishing solder paste on PCB is to provide solder metal to solder joint to rectify sum. That merely publish must be aligned right and can acquire a perfect constituent arrangement.Printing Procedure ParametersSome of the undermentioned parametric quantities are really of import to publishing procedure. Stencil Stencils are utilizing for the solder paste slip easy off the aperture edges and thereby secures a unvarying print. For this procedure we utilizing electro formed stencils. Because of these stencils have really shape border and somewhat conelike. By and large a stencil is mading from cuppa or Ni. ENVIRONMENTAL Dust and soil from the air that will make the PCBs and stencils can be defects hapless wet ability in the reflow bonding procedure. So PCBs should be stored in certain bundles and cleaned before usage. SOLDER PASTE Solder paste characterise must be controlled to accomplish a maximal production consequences. Some of the factors are given below [ 12 ] . Percentage of metal Viscosity Slump Solder balls Flux activity working life and shelf lifeSolder Paste Printing Equipment and ProcessStencil printing parametric quantities are really of import factors in publishing procedures to accomplish a best output. The undermentioned parametric quantities must be proctors and controlled in a printing procedure. Squeegee force per unit area = 8kg Squeegee speed = 20 mm/s Separation speed = 100 % Printing spread = 0.0 millimeter These factors and bound can be adjust for our undertaking intent Figure 3.1 DEK 260 stencil printing machine The DEK 260 stencil printing machine is used to publish solder paste on the circuit board. This DEK 260 stencil printing machine has two chief maps. Registers the place of the merchandise screen with in the print caput Positioning the circuit board below the stencil, to cook for the print rhythm. The boards to be print are supported on magnetic tooling and held by vacuity caps arranged on the home base to vouch the board steady during the printing on to the board. The first measure of the experiment is to make the solder paste publishing on to the board.Figure 3.2 Stencil printing by manusIn this undertaking unable to acquire metal stencil, so circuit boards are printed by manus, below process followed to publish PCB Put weights onto the stencil to repair it turn over the squeegee over the stencil solder paste presses through the aperture onto PCB separate stencil Two circuit boards are printed with solder paste for each solder paste types. Wholly 4 circuit boards printed.Pick and PlaceComponent of PCB placed by choice and topographic point machine ( APS Gold-Place L20 ) . robotic weaponries are used to put surface-mount devices onto PCB. Pick and topographic point process as follow. pneumatic suction noses taken by caput of arm, so moved to feeder where the constituent is loaded. The suction nozzele picks it up utilizing vacuity, and moves to the arrangement location so centers the constituent with focus oning fingers. After justified aligned point, it places the constituent onto solder paste.Figure 3.3 APS Gold-Place L203.3 SOLDER PASTE REFLOWPROCESS & A ; PROFILEFigure 3.4 reflow ovenReflow procedure is really of import to accomplish a good dependable solder articulation. Novastar 2000 HT convectional reflow oven is used in research lab for the probe. When making the reflow procedure with lead free solder paste it has to be performed at a m inimal peak temperature of 150.It is by and large accepted that lead free solders requires a higher reflow temperature up to 230 – 240.reflow oven has six warming zones and chilling zone. ( Wu J.2000 ) Reflow profile will be impacting the dependability of a solder articulation. Because it is a major factor that influence the formation of the intermettallic beds in a solder articulation. Intermettalic bed is a critical portion of a solder articulation. An intermettalic bond thickness should be thin. Therefore a good reflow profile must bring forth solder bumps with a thin intermetallic layer.. ( Zhang RR.2001 )PREHEAT ZONEIn this zone indicates how the temperature is altering fast on the printed circuit board. The ramp-up rate is normally between 1-3 per second. If this rate exceeds there will be harm to constituents from thermic daze. Merely In this preheat zone the solder paste begins to vaporize. So if the rise rate is excessively low the vaporization of flux is non uncomplete. This will impact the quality of the solder articulation.THERMAL SOAK ZONEIt is besides called the flux activation zone. In this thermic soak zone it will take 60-120 seconds for remotion of solder paste an d activation of fluxes. Solder splatter and balling will be go on if the temperature is excessively high or excessively low. End of this thermic daze zone a thermic equilibrium will finish the full circuit board.REFLOW ZONEIn this reflow zone merely the maximal temperature will be reached. In this zone we have to see about the peak temperature that is the maximal allowable temperature of full procedure. It is really of import to supervise this maximal temperature exceeds the peak temperature in this zone. It may do harm to the internal dies of SMT constituents and a block to the growing of intermetalic bonds. we have to see the profile clip besides. If clip exceeds than the industries specification it besides affect the circuit board ‘s quality.Cooling ZoneIn the reflow procedure the last zone is chilling zone. A proper chilling inhabits extra intermetallic formation or thermic daze to the constituents. By and large the chilling zone temperature scope is 30 – 100. In this undertaking, the undermentioned temperature profiles were selected. This temperature profile is stranded reflow profile for lead free bonding. Zone 1 220 Zone 2 180 Zone 3 170 Zone 4 190 Zone5 233 Zone 6 233 Wholly 4 circuit boards were printed. Choosing of good reflow profile was non involves any defects or amendss in the printed circuit board.Figure 3.5 Reflow profileFigure 3.6 printed circuit board after reflowSET UP EVENT DETECTORFigure 3.7 Event sensorThe constructed PCB ‘s were connected with event sensor by thread informations overseas telegram. Ribbon overseas telegram addressed harmonizing to `Analysis tech STD series event sensors manual ‘ . pins 1 to 32 map as beginning terminus and pins 33 to 37 map as land terminus.Figure 3.8 Ribbon overseas telegram pin referenceTo obtain closed cringle circuit to supervise the behavior of PCB constituents, PCB boards 1, 2, 3 and 4 connected to impart 1,2,33 and 34 severally.Ribbon overseas telegramAfter connected thread overseas telegram with event sensor and environment chamber, channels are assigned in â€Å" WIN DATA LOG † package which supplied with event sensor. For this trial following scenes define for informations acquisition.Figure 3.9 set up trial informations in event sensor3.5 INVESTICATING RELIABILITY OF SOLDER JOINT UNDER VIBRATION CHAMERFigure 3.10 Design Environmental FS800-70SVIn this survey, PCB ‘s were used in Variable Frequency Vibration Test to analyze the dynamic response of PCB assembly subjected to random quiver burden. The PCB specimens were tested at different acceleration degrees to measure the solder articulation dependability subjected changing G-level quiver tonss ( G is the gravitative acceleration ) , severally. Vibration trials were accomplished by utilizing an electro dynamic Shaker ( Design Environmental FS800-70SV ) and event sensor. One accelerometer was used to find the dynamic response of the specimen, Daisy concatenation cringles were monitored at the same time by an Event Detector during quiver trial. Any opposition alteration transcending a preset threshold with minimal continuance of 200ns can be d etected by the Event Detector. When a cleft is initiated in the solder articulation during the quiver trial, the opposition will increase. The failure standards recommended by IPC – 785 criterion is defined as daisy concatenation opposition by thermic or mechanical transients or perturbations in the signifier of short continuance ( ~ 1 A µsec ) high opposition spikes ( & gt ; 300 a„ ¦ ) . During thermic alterations the solder articulations are capable to shear, non tensile, lading ; hence, fracture surfaces of fractured solder articulations slide relative to each other bring forthing the characteristic short continuance intermittent. Therefore, in this context, the practical definition of solder joint failure is the break of electrical continuity ( & gt ; 300 ohms ) for periods greater than 1 microsecond. Figure 3.11 PCB ‘s was mounted inside the Environment chamber in this mode. Figure 3.12 Above tabular array exemplifying trial program.Figure 3.13 Trial programFigure 3.14 graphs obtained from chamberChapter 4ConsequencePCB board Failure rate ( % ) Operation clip ( hours ) Dependability 1 24.0 5 0 2 63.0 13.04 0 3 1.6 0.3305 0.5893 4 2.5 0.5083 0.2806Table 4.1 dependability of solder pasteThe proving began with 1 GRMS. The intent of this to observe any gross issues in solder articulations, every bit good as with the informations acquisition system. No failures were detected at beginning, nevertheless, after 1.5GRMS an review revealed that both PCBs 3 and 4 were failed. Following, quiver degrees were stepped bit by bit to 6GRMS increases over the period of five hours PCB 1 got failed, In 13.04 hr ‘s period the chamber reached degree of about 14GRMS, staying PCB besides got failed. However, the failure mechanism was attributed to a quiver moving on the solder connexion particular to these parts and was straight related to thermic mistakes. Failure rate Time elapsed Above graph illustrating failure rate vs. Time elapsed for Sn42Bi57Ag1 Failure rate Time elapsed Above graph illustrating failure rate vs. Time elapsed for Sn95.5Ag4Cu0.5Chapter 5RESULT ANALYSISFrom dependability analysis sample 3 has maximum dependability and sample 2 has minimum dependability. Each sample was subjected to nominal supply current and opposition value in conformity with the design and public presentation specification. Respective trial samples continued to vibrate with some public presentation abnormalities observed. The aim of this experiment was to utilize HALT quiver to set up the relationship between the life of similar parts soldered with different solder composings. The consequences proved inconclusive for the primary intent of â€Å" Sn95.5Ag4Cu0.5 † versus â€Å" Sn42Bi57Ag1 † articulation random quiver trial. Both composings demonstrated weak public presentation and the consequences may propose that with regard to this brief random quiver trial, solder articulation dependability is different between the two composings. No samples were separated from the trial vehicle as a consequence of the quiver applied. However, the trial procedure revealed insight into HALT and suggested factors which can impact consequences when soldered constituents are being compared. First, Printed circuit board kineticss would be understood and controlled so that acceleration hot musca volitanss and nothings are made more equal in amplitude. A flexible PCB will debar and bring forth bending emphasiss suited for measuring emphasis on solder articulations. But with a flexible board acceleration uniformity become hard to command and do a comparing trial less nonsubjective. Second, HALT random quiver is a good methodological analysis for bring forthing multi-axis wide spectrum energy for PCBs and their constituents. ( Wu J.2000 ) The typical method to analyze the functionality of a PCB in a quiver environment is to verify the quiver transmissibility. Normally the transmissibility at any location of PCB should be less than a factor of 10, i.e. , 1 G input will non bring forth more than 10 G end product at any location of the PCB. To accomplish this end, two methods can be applied to the PCB design. One is to restrain the PCB tightly to the fixture, which can be realized by bettering the boundary conditions in the finite component analysis theoretical account. The other is to relocate heavy affiliated constituents of the PCB board to allow optimum locations ( i.e. , mass re-distribution ) . ( Wu J.2000 ) Lead free solder assemblies have quickly been promote in the micro-packaging development to forestall the environmental pollution, issues on the dependability has non been clearly solved. Several experiments have been conducted on the soundness of alternate lead free soldering technique such as Sn-Ag-Cu solder. During the bumping procedure, a considerable thermic distortion is occurred and the chemical features of solder and bed qualities are besides changed in agreement with the surface completing method such as ET ( electric Sn ) , ENEPIG ( electro less nickel, electro less Pd and submergence gold ) etc. The IMC ( intermetallic compound ) bed is formed in a micro-scale part between the solder and the surface completing stuff under high temperature adhering procedure. In the field of micro-packaging together with IMC bed, one of the most hard issues is to mensurate width interface beds in a solder articulations. Since the IMC beds have been estimated as the weakest subdivision in th e solder articulations, a accurate finding of mechanical belongingss in the country of this critical part may supply direct and enhanced information to understand the break behavior. aˆ? . ( Zhang RR.2001 ) stringency of mounting bolt of PCB reduced during experiment. Due to this consequence the PCB stated to vibrate freely. Applied quiver force was non shared uniformly. From finite component analysis alterations in stringency of mountin bolt can be realize.Chapter 6DecisionThe decisions ensuing from this work are:.Interactions between temperature and quiver were found important and therefore had influence on concluding consequence. Stencil printing by manus affect the solder joint dependability. Better apprehension gained about electronic assembly behaviors when subjected to quiver. Gained cognition about electronic assembly procedure and how it is act uponing in solder articulation dependability. Gained good experience in managing event sensor and environmental proving chamber.Chapter 7FUTURE WORKSIn this undertaking investigated the consequence of quiver of solder articulation dependability in electronic assembly. For this probe two different types solder paste used, eventually all specimens were tested in environmental Chamber. In this undertaking when making quiver trial informations acquired by event sensor is non accurate value. From informations obtained from event sensor does non give proper analytical consequence. In sing about the hereafter works of this undertaking can be expand based on acquirable informations type, every bit good as finite component analysis because dependability of a solder articulation depends on assorted environmental factors, so result analysis will be more accurate and stand with more international criterions.