Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Encapsulating
Reexamination Certificate
2008-03-25
2008-03-25
Coleman, W. David (Department: 2823)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Encapsulating
C257SE21502
Reexamination Certificate
active
07348220
ABSTRACT:
The present invention is characterized in that a powdery or granular resin composition stirred and melted in an agitating pot having a heater by rotating an agitating rod projecting from a tip of an agitating plunger, the agitated and melted resin composition is taken out and formed in the form of a package under pressure, and the formed resin composition is fitted to a compression plunger inside a cavity of a lower molding unit, a semiconductor package is molded by encapsulating under pressurizing with the compression plunger.Even when the wires are thinned and arranged at a higher density, the above producing method can provide such method and apparatus for producing the resin-encapsulated type semiconductor packages that produce less flowing of the wires.
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Hirose Yoshitaka
Ito Hideo
Ubukata Tamaya
Coleman W. David
Oliff & Berridg,e PLC
Sumitomo Bakelite Co. Ltd.
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