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. 03, 2013
Filed:
Apr. 29, 2011
Yoshihira Hamamoto, Annaka, JP;
Tsutomu Kashiwagi, Annaka, JP;
Yoshihira Hamamoto, Annaka, JP;
Tsutomu Kashiwagi, Annaka, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
The object of the present invention is to provide a silicone resin composition for encapsulating an optical semiconductor element which has strong adhesiveness to a substrate and provide an optical semiconductor element which has high reliability. The present invention provides a silicone resin composition comprising an organopolysiloxane (A) having at least two alkenyl groups per molecule, a liner organohydrogenpolysiloxane (B-1) which has hydrogen atoms each bonded to a silicon atom at the both terminals and a liner organohydrogenpolysiloxane (B-2) which has a hydrogen atom bonded to a silicon atom at one terminal and a hydroxyl or alkoxy group bonded to a silicon atom at the other terminal, a branched organohydrogenpolysiloxane (C) having at least three hydrosilyl groups per molecule, a catalytic (D), and a condensation catalyst (E). The present invention also provides an optical semiconductor device provided with a cured product thereof.