Lead -Frame Plating Composition Change for Legacy Eutectic ...

Q7: How to check if the solder fillet is acceptable after surface mount? Based on IPC-A-610 “Acceptability of Electronic Assemblies” spec 8.2.5 Flat Ribbon, L and Gull Wing Leads definition, the PPF lead finish with proper reflow profile and board mount will have a solder fillet that should meet either the Class 1 or Class 2 criteria. ................
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