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Investigations of alternative Cu-based alloys were carried out as an opportunity for improvement on the quality, reliability and cost reduction. CuFeP and CuCr were successfully evaluated as an alternative leadframe alloys to the existing CuZr alloy on a wheel-speed magnetic sensor package through thermo-mechanical simulation, assembly and test performance, and reliability tests performance. Material...
Leadframe surface roughening improves adhesion between the mold compound and the leadframe. The improvement in adhesion will help eliminate delamination within the leadframe-mold compound interface. Two different surface treated leadframes were successfully evaluated through leadframe surface characterization, room and high temperature button shear performance, and leadframe-to-mold delamination performance...
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