Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2008-04-08
2008-04-08
Sellers, Robert (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C523S457000, C523S466000, C525S507000
Reexamination Certificate
active
10968208
ABSTRACT:
One of major objects of the invention is to provide an epoxy resin composition and a semiconductor device exhibiting good soldering resistance when being formed on a non-copper frame. Thus, this invention provides an epoxy resin composition for encapsulating a semiconductor comprising (A) an epoxy resin, (B) a phenolic resin, (C) a hardening accelerator, (D) an inorganic filler and (E) a triazole compound, preferably an epoxy resin composition for encapsulating a semiconductor wherein the triazole compound is a compound represented by general formula (1):wherein R1 represents hydrogen atom, or mercapto group, amino group, hydroxyl group or a hydrocarbon chain with 1 to 8 carbon atoms containing one or more of the functional groups as an end group.
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Sellers Robert
Smith Gambrell & Russell
Sumitomo Bakelite Co.
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