Resin sealing mold and resin sealing method

Details Resin sealing mold and resin sealing method Resin sealing mold and resin sealing method

2005-09-14

2008-08-19

Davis, Robert B (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

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

Female mold type means

C425S125000, C425S129100

Reexamination Certificate

active

07413425

ABSTRACT:
A resin sealing mold for semiconductor devices, which is designed to thoroughly accommodate board thickness variations and prevent formation of burrs and which is easy to maintain. To this end, a plurality of pistons (42) supporting, at one of their respective ends, lower mold cavities (56) have the other ends thereof slidably inserted in hydraulic cylinder blocks installed on lower mold sets (40).

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