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:
Jul. 08, 2014
Filed:
Mar. 01, 2013
Applicant:
Advanced Optoelectronic Technology, Inc., Hsinchu Hsien, TW;
Inventors:
Assignee:
Advanced Optoelectronic Technology, Inc., Hsinchu Hsien, TW;
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01L 33/22 (2010.01);
U.S. Cl.
CPC ...
H01L 33/22 (2013.01);
Abstract
A light emitting diode and a light emitting diode (LED) manufacturing method are disclosed. The LED comprises a substrate; a first n-type GaN layer; a second n-type GaN layer; an active layer; and a p-type GaN layer formed on the substrate in sequence; the second n-type GaN layers has a bottom surface interfacing with the first n-type GaN layer, a rim of the bottom surface has a roughened exposed portion, and Ga—N bonds on the bottom surface has an N-face polarity.