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:
Nov. 17, 2015
Filed:
Mar. 16, 2012
Applicants:
Tzu-chien Hung, Hsinchu, TW;
Chia-hui Shen, Hsinchu, TW;
Inventors:
Tzu-Chien Hung, Hsinchu, TW;
Chia-Hui Shen, Hsinchu, TW;
Assignee:
ADVANCED OPTOELECTRONIC TECHNOLOGY, INC., Hsinchu Hsien, TW;
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01L 33/08 (2010.01); H01L 27/15 (2006.01); H01L 33/10 (2010.01); H01L 33/20 (2010.01); H01L 33/22 (2010.01); H01L 33/62 (2010.01);
U.S. Cl.
CPC ...
H01L 27/156 (2013.01); H01L 33/10 (2013.01); H01L 33/20 (2013.01); H01L 33/22 (2013.01); H01L 33/62 (2013.01); H01L 2924/0002 (2013.01);
Abstract
An LED array includes a substrate, protrusions formed on a top surface of the substrate, and LEDs formed on the top surface of the substrate and located at a top of the protrusions. The LEDs are electrically connected with each other. Each LED includes a connecting layer, an n-type GaN layer, an active layer, and a p-type GaN layer formed on a top of the protrusions in sequence. A bottom surface of the n-type GaN layer connecting the connecting layer has a roughened exposed portion. The bottom surface of the n-type GaN layer has an N-face polarity.