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:
Dec. 27, 2011
Filed:
Jul. 28, 2005
Shinichi Zenbutsu, Utsunomiya, JP;
Shinichi Zenbutsu, Utsunomiya, JP;
Sumitomo Bakelite Co., Ltd., Tokyo, JP;
Abstract
An epoxy resin composition comprising (A) an epoxy resin (B) a phenol resin, (C) a curing accelerator, (D) silica, and (E) alumina and/or aluminum hydroxide, wherein the amount of aluminum to the total amount of the epoxy resin composition is 0.25-5 wt % and 70 wt % or more of the silica has an average particle size of 25 μm or less. The epoxy resin composition for semiconductor encapsulating and a semiconductor device comprising a semiconductor element encapsulated using the composition possess excellent characteristics in reliability during high temperature operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile