Lead frame flash removing method and apparatus

Details Lead frame flash removing method and apparatus Lead frame flash removing method and apparatus

H - Electricity

01

L

H01L 21/48 (2006.01)

Patent

CA 2199112

In a lead frame flash removing method and apparatus, a lead frame is molded integrally with a case. After molding, abrasive agent-mixed water is sprayed to a surface of the lead frame where a flash is formed. The lead frame is dipped in an electrolytic solution and applying a DC voltage is applied across the lead frame and an electrode in the electrolytic solution, thereby electrolytically processing the lead frame. After the electrolytic process, an external force is applied to the surface of the lead frame, thereby removing the flash.

Méthode et appareil pour éliminer le voile d'un cadre de plomb, où un cadre de plomb est moulé intégralement à un bac. Une fois moulé, de l'eau additionnée d'un agent abrasif est vaporisée sur une surface du cadre sur laquelle se forme un voile. Le cadre est trempé dans une solution électrolytique et une tension C.C. est appliquée au cadre et à une électrode dans la solution électrolytique, soumettant ainsi le cadre à un traitement électrolytique. € la suite du traitement électrolytique, la surface du cadre est soumise à une force externe qui élimine le voile.

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