Abstract:Pd coated wire is increasely being used as a substitute for bare Cu wire. Being a noble metal, Pd coated wire has high resistance to oxidation enabling longer shelf life. Its chemical properties also exhibit better second bond-ability on micro PPF lead frame enabling simple bond process translating to high throughput and yield. It has higher stiffness which is able to minimize the wire sweep especially for LQ FP, as well as thermo-mechnical robustness.However, there are a few challenges to be overcomed before … Show more
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