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2017-1-24Gold Embrittlement of Solder Joints 8 www.semlab.com 425.335.4400 infosemlab.com possibility of gold embrittlement it is not clear why such a solder joint design was even considered. Figure 5 Ref. IFN 3705 BSE SEM image 1513X. This is the microstructure of the solder joint showing the distribution of Sn-phase dark gray Pb-phase light

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