Packaging mold with electrostatic discharge protection

Details Packaging mold with electrostatic discharge protection Packaging mold with electrostatic discharge protection

2005-09-13

2005-09-13

Davis, Robert B. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

C425S127000, C425S129100, C425S544000

Reexamination Certificate

active

06942478

ABSTRACT:
The present invention relates to a packaging mold with electrostatic discharge protection comprising a pot block and at least one receiver. The pot block comprises a plurality of pots and runners. Each of the pots branches and connects the runners for injecting molding compound into the runners through the pots. The receiver for supporting a plurality of substrate plates connects the runners for receiving the molding compound from the runners to package the dice on the substrate plates. Each receiver comprises a receiving surface contacting the substrate plate; wherein the receiving surface is roughened to reduce static electric charges generated when separating the substrate plates and the packaging mold. Additionally, the surfaces of the runners are roughened to reduce static electric charges generated in the runners when separating the molding compound and the runners. It prevents the dice packaged from damage due to static electric charges to raise the yield rate of semiconductor package products thereby.

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