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 9449815 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 20, 2016

Filed:

Oct. 17, 2013
Applicant:

Seoul Viosys Co., Ltd., Ansan-si, KR;

Inventors:

Seung Kyu Choi, Ansan-si, KR;

Woo Chul Kwak, Ansan-si, KR;

Chae Hon Kim, Ansan-si, KR;

Jung Whan Jung, Ansan-si, KR;

Assignee:

Seoul Viosys Co., Ltd., Ansan-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 21/02458 (2013.01); H01L 21/0254 (2013.01); H01L 21/0262 (2013.01); H01L 21/02507 (2013.01);
Abstract

Exemplary embodiments of the present invention relate to a method of growing gallium nitride-based semiconductor layers through metal-organic chemical vapor deposition, including disposing a substrate in a chamber, growing a first conductivity-type gallium nitride-based semiconductor layer on the substrate at a first chamber pressure, growing a gallium nitride-based active layer on the first conductivity-type gallium nitride-based semiconductor layer at a second chamber pressure higher than the first chamber pressure, and growing a second conductivity-type gallium nitride-based semiconductor layer on the active layer at a third chamber pressure lower than the second chamber pressure.


Find Patent Forward Citations

Choi, Seung. (2016). Method of growing gallium nitride based semiconductor layers and method of fabricating light emitting device therewith (U.S. Patent No. 9449815). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9449815

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