D. Farley, A. Dasgupta, Y. Zhou, J. Caers, J. D. de Vries
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引用次数: 3
Abstract
This study focuses on quasi-static mechanical cycling durability of copper traces on printed wiring assemblies (PWAs). PWA specimens populated with Land Grid Array (LGA) components on copper-defined pads were cycled to failure under zero-to-max, three-point bending. Failure is defined in terms of electrical opens due to fatigue damage propagation through the entire cross-section of the trace. Failure statistics were collected and failure analysis was conducted to identify fatigue failures in the copper traces, near the connection to the solder pad.
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