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Thermal fatigue of solder joints is critical to electronic package performance and life consideration. Failure caused by device warpage (WPG) problems is a major challenge with demands for miniaturization and system integration in a faster, better, and cheaper environment. This paper discusses a relationship between warpage and thermal fatigue life time and failure mechanism under thermal cycling...
In this paper a possible method demonstrated for in-situ reliability testing of various TIM materials. The method is based on thermal transient measurements of a power semiconductor device in a TO-type package which has a flat, external cooling surface. By powering the junction of the semiconductor cyclically the whole assembly is exposed to intense thermal cycles in which the main heat-flow path...
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