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:
Jun. 17, 2014
Filed:
Feb. 19, 2012
Ya-wen Lin, Hsinchu, TW;
Shih-cheng Huang, Hsinchu, TW;
Po-min Tu, Hsinchu, TW;
Chia-hung Huang, Hsinchu, TW;
Shun-kuei Yang, Hsinchu, TW;
Ya-Wen Lin, Hsinchu, TW;
Shih-Cheng Huang, Hsinchu, TW;
Po-Min Tu, Hsinchu, TW;
Chia-Hung Huang, Hsinchu, TW;
Shun-Kuei Yang, Hsinchu, TW;
Advanced Optoelectronics Technology, Inc., Hsinchu Hsien, TW;
Abstract
An LED comprises a substrate, a buffer layer, an epitaxial layer and a conductive layer. The epitaxial layer comprises a first N-type epitaxial layer, a second N-type epitaxial layer, and a blocking layer with patterned grooves sandwiched between the first and second N-type epitaxial layers. The first and second N-type epitaxial layers make contact each other via the patterned grooves. Therefore, the LED enjoys a uniform current distribution and a larger light emitting area. A manufacturing method for the LED is also provided.