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:
May. 22, 2007
Filed:
Apr. 05, 2005
Noriaki Harada, Osaka, JP;
Yuji Hotta, Osaka, JP;
Ichirou Suehiro, Osaka, JP;
Naoki Sadayori, Osaka, JP;
Noriaki Harada, Osaka, JP;
Yuji Hotta, Osaka, JP;
Ichirou Suehiro, Osaka, JP;
Naoki Sadayori, Osaka, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
The invention provides a sheet for optical-semiconductor element encapsulation, which has a multilayer structure including at least two resin layers. The at least two resin layers include: (A) an outermost resin layer (layer A) that is to be brought into contact with one or more optical semiconductor elements; and (B) a resin layer (layer B) disposed on the layer A and having a lower refractive index than that of the layer A. Also disclosed is a process for producing an optical semiconductor device using the sheet.