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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 9012884 B1

PDFFull Text
Date of Patent:
Apr. 21, 2015

Filed:

Mar. 14, 2013

Semiconductor light-emitting devices including contact layers to form reflective electrodes

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;

Inventors:

Jung-Sub Kim, Hwaseong-si, KR;

Sung-Won Hwang, Hwaseong-si, KR;

Geun-Woo Ko, Suwon-si, KR;

Cheol-Soo Sone, Seoul, KR;

Sung-Hyun Sim, Seoul, KR;

Jin-Sub Lee, Suwon-si, KR;

Assignee:

Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Peniel M Gumedzoe

Int. Cl.
CPC ...
H01L 33/40 (2010.01); H01L 33/30 (2010.01); H01L 33/14 (2010.01); H01L 33/32 (2010.01); H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
H01L 33/405 (2013.01); H01L 33/305 (2013.01); H01L 33/145 (2013.01); H01L 33/40 (2013.01); H01L 33/32 (2013.01); H01L 33/0075 (2013.01); H01L 33/14 (2013.01);
Abstract

A semiconductor light-emitting device includes a contact layer. The contact layer has the composition ratio of Al elements which varies gradually therein. A region formed by an Al element in the contact layer of the semiconductor light-emitting device may improve light extraction efficiency of the light emitted from an active layer and facilitate a formation of the reflective electrode.

Find Patent Forward Citations

Kim, Jung-Sub. (2015). Semiconductor light-emitting devices including contact layers to form reflective electrodes (U.S. Patent No. 9012884). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9012884

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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