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:
Apr. 05, 2016
Filed:
Aug. 13, 2012
Yoshihira Hamamoto, Annaka, JP;
Manabu Ueno, Tokyo, JP;
Tsutomu Kashiwagi, Annaka, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
An optical semiconductor device in which an optical semiconductor element connected to a silver-plated copper lead frame is sealed with an addition curing silicone resin composition, the addition curing silicone resin composition having (A) organopolysiloxane that contains an aryl group and an alkenyl group and does not contain an epoxy group; (B) organohydrogenpolysiloxane that has at least two hydrosilyl groups per molecule and an aryl group, the organohydrogenpolysiloxane that contains 30 mol % or more of an HRSiOunit in a constituent unit having an amount that a molar ratio of the hydrosilyl group in the component (B) with respect to the alkenyl group in the component (A) is 0.70 to 1.00; and (C) a hydrosilylation catalyst having a catalytic amount.