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:
Jan. 17, 2012
Filed:
Mar. 04, 2008
Chia-ming Chuang, Hsinchu, TW;
Donald Tai-chan Huo, Hsinchu, TW;
Chia-chen Chang, Hsinchu, TW;
Tzu-ling Yang, Hsinchu, TW;
Chen Ou, Hsinchu, TW;
Chia-Ming Chuang, Hsinchu, TW;
Donald Tai-Chan Huo, Hsinchu, TW;
Chia-Chen Chang, Hsinchu, TW;
Tzu-Ling Yang, Hsinchu, TW;
Chen Ou, Hsinchu, TW;
Epistar Corporation, Hsinchu, TW;
Abstract
This invention provides a high-efficiency light-emitting device and the manufacturing method thereof. The high-efficiency light-emitting device includes a substrate; a reflective layer; a bonding layer; a first semiconductor layer; an active layer; and a second semiconductor layer formed on the active layer. The second semiconductor layer includes a first surface having a first lower region and a first higher region.