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Evaluation of Environmental Tests for Tin Whisker Assessment

dc.contributor.advisorOsterman, Michael Den_US
dc.contributor.authorPanashchenko, Lyudmylaen_US
dc.description.abstractTin whiskers are electrically conductive crystalline structures of tin that over time may grow outward from tin-rich surfaces and present a reliability hazard to electronic systems. While the problem has been known for decades, no satisfactory explanation of whisker growth mechanisms exists, leaving the industry to create whisker-assessment tests based on empirical data gathered under various environmental storage conditions controlled for temperature, humidity and temperature cycling. The long-term predictability of these environmental storage tests has not been addressed and the accuracy of these tests in foreseeing whisker growth is unclear. In this thesis, different tin finishes are assessed for whisker growth in accordance with existing environmental test standards and compared to growth seen in ambient storage conditions. The results indicate that environmental tests may over-predict, under-predict, or show little distinguishable growth as compared to ambient-stored tin finishes. In conclusion, environmental tests are not a reliable method of assessing future whisker growth.en_US
dc.titleEvaluation of Environmental Tests for Tin Whisker Assessmenten_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentMechanical Engineeringen_US
dc.subject.pqcontrolledEngineering, Mechanicalen_US
dc.subject.pqcontrolledEngineering, Packagingen_US
dc.subject.pquncontrolledenvironmental testsen_US
dc.subject.pquncontrolledmetal whiskeren_US
dc.subject.pquncontrolledtin oxideen_US
dc.subject.pquncontrolledtin whiskeren_US
dc.subject.pquncontrolledwhisker thicknessen_US

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