Frequency dependent S-N curves for predicting drop impact robustness of Pb-free solder interconnects

Abstract

In this paper, a series of PCB strain-to-fatigue life characteristics were generated at a constant bending frequency of 100Hz for different material combinations: eutectic SnPb solder, SAC101 solder, and In/Ni-doped SAC101 solder, assembled on PCB with OSP and ENIG finish respectively. As expected, SAC101 solder exhibits similar performance as eutectic SnPb… (More)

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