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. 24, 2018
Filed:
Jul. 27, 2015
Sumitomo Chemical Company, Limited, Chuo-ku, Tokyo, JP;
Gaku Yoshikawa, Osaka, JP;
Masayuki Takashima, Osaka, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
A method for producing a semiconductor light-emitting device involves applying a silicone resin composition to a surface of a semiconductor light-emitting element and forming an encapsulating portion covering the surface of the light-emitting element by heat curing the applied resin composition. The silicone resin composition contains at least 60% by mass of a silicone resin in which the constituent silicon atoms are substantially only silicon atoms to which three oxygen atoms are bonded. The heat curing satisfies 5<a−b<20, in which 'a cm' is an infrared absorption spectrum peak position assigned to Si—O—Si linkages in a range from 1,000 to 1,050 cmof the silicone resin before the heat curing and 'b cm' is an infrared absorption spectrum peak position assigned to Si—O—Si linkages in a range from 950 to 1,050 cmof the silicone resin composition after the heat curing.