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:
Mar. 04, 2014
Filed:
Sep. 03, 2010
Applicants:
Takashi Taniguchi, Osaka, JP;
Takamitsu Ota, Osaka, JP;
Hisataka Ito, Osaka, JP;
Inventors:
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/52 (2010.01); C08L 63/00 (2006.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a resin composition for forming an insulating resin layer for optical semiconductor element housing package having a concave portion in which a metal lead frame and an optical semiconductor element mounted thereon are housed, in which the resin composition includes the following ingredients (A) to (D), and the ingredients (C) and (D) are contained in a blend ratio (C)/(D) of 0.3 to 3.0 as a weight ratio thereof: (A) an epoxy resin; (B) an acid anhydride curing agent; (C) a white pigment; and (D) an inorganic filler.