Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1988-08-02
1990-10-23
James, Andrew J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525481, 525527, H01L 2328
Patent
active
049656570
ABSTRACT:
A resin encapsulated semiconductor device sealed with an epoxy resin molding material particularly containing a brominated epoxy resin as a flame retardant with the bromine content of 0.5% by weight or less, antimony oxide as a flame retardant in an amount of 2.0% by weight or more and a quaternary phosphonium tetrasubstituted borate as a curing accelerator is excellent in connection reliability at Au/Al junctions and heat resistance.
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Abe Hidetoshi
Kawata Tatsuo
Ogata Masatsugu
Segawa Tadanori
Suzuki Shigeo
Hitachi , Ltd.
Hitachi Chemical Co. Ltd.
James Andrew J.
Meier Stephen D.
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