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.:

US 7781794 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 24, 2010

Filed:

Mar. 24, 2009
Applicants:

Ichiro Suehiro, Ibaraki, JP;

Kouji Akazawa, Ibaraki, JP;

Hideyuki Usui, Ibaraki, JP;

Inventors:

Ichiro Suehiro, Ibaraki, JP;

Kouji Akazawa, Ibaraki, JP;

Hideyuki Usui, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a resin sheet for encapsulating an optical semiconductor element, the resin sheet containing an encapsulation resin layer, an adhesive resin layer, a metal layer and a protective resin layer, in which the encapsulation resin layer and the metal layer adhered onto the adhesive resin layer are disposed adjacently to each other, the protective resin layer is laminated on the encapsulation resin layer and the metal layer so as to cover both the encapsulation resin layer and the metal layer, and the encapsulation resin layer has a taper shape expanding toward the protective resin layer; and an optical semiconductor device containing an optical semiconductor element encapsulated by using the resin sheet. The optical semiconductor element encapsulation resin sheet of the invention can be suitably used for back lights of liquid crystal screens, traffic signals, large-sized outdoor displays, billboards and the like.


Find Patent Forward Citations

Suehiro, Ichiro. (2010). Resin sheet for encapsulating optical semiconductor element and optical semiconductor device (U.S. Patent No. 7781794). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7781794

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