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Reliability and failure analysis of SnAgCu solder interconnections on NiAu surface finish

The authors study the reliability and failure mechanisms of eutectic SnAgCu solder interconnects on NiAu surface finish. As a comparision, the reliability and failure mechanism of standard SnPb solder joints on SiAu surface finish is studied as well. The similarities and differences in the failure modes for both solders are analysed and discussed.