Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-03-03
2010-12-07
Jagannathan, Vasu (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S203000, C523S404000, C523S466000, C524S304000, C524S308000
Reexamination Certificate
active
07846998
ABSTRACT:
Disclosed is an encapsulation epoxy resin material containing an epoxy resin (A) and a curing agent (B). The epoxy resin (A) contains a compound represented by the general formula (I) below. The encapsulation epoxy resin material has excellent reliability in flame retardance, formability, reflow resistance, moisture resistance, high-temperature shelf characteristics and the like, and is suitably used for encapsulation of a VLSI. Also disclosed is an electronic component comprising an element encapsulated with such a material. (I) (In the general formula (I), R1s may be the same or different and respectively represent one selected from substituted or unsubstituted hydrocarbon groups having 1-12 carbon atoms and substituted or unsubstituted alkoxy groups having 1-12 carbon atoms; n represents an integer of 0-4; R2s may be the same or different and respectively represent one selected from substituted or unsubstituted hydrocarbon groups having 1-12 carbon atoms and substituted or unsubstituted alkoxy groups having 1-12 carbon atoms; and m represents an integer of 0-6.)
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Akagi Seiichi
Endou Yoshinori
Ikeuchi Takatoshi
Ikezawa Ryouichi
Katayose Mitsuo
Griffin & Szipl, P.C.
Hitachi Chemical Co. Ltd.
Jagannathan Vasu
Pak Hannah
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