The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1992
Filed:
Aug. 02, 1991
Applicant:
Inventors:
Toshio Shiobara, Annaka, JP;
Kazutoshi Tomiyoshi, Takasaki, JP;
Koji Futatsumori, Annaka, JP;
Takashi Tsuchiya, Takasaki, JP;
Takayuki Aoki, Annaka, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08L / ;
U.S. Cl.
CPC ...
523443 ; 523466 ; 525476 ; 525481 ; 525482 ; 528 97 ;
Abstract
An epoxy resin composition comprising (A) a specific epoxy resin, (B) a phenolic resin having at least one naphthalene ring in a molecule, and (C) an inorganic filler has improved flow and cures into products having a low coefficient of expansion, high Tg, and low moisture absorption. The composition is suitable for encapsulating semiconductor devices.