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. 02, 2015
Filed:
Dec. 02, 2013
Epistar Corporation, Hsinchu, TW;
Chao-Hsing Chen, Hsinchu, TW;
Yu-Chen Yang, Hsinchu, TW;
Li-Ping Jou, Hsinchu, TW;
Hui-Chun Yeh, Hsinchu, TW;
Yi-Wen Ku, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
A light-emitting device of an embodiment of the present application comprises a semiconductor layer sequence provided with a first main side, a second main side, and an active layer; a beveled trench formed in the semiconductor layer sequence, having a top end close to the second main side, a bottom end, and an inner sidewall connecting the top end and the bottom end. In the embodiment, the inner sidewall is an inclined surface. The light-emitting device further comprises a dielectric layer disposed on the inner sidewall of the beveled trench and the second main side; a first metal layer formed on the dielectric layer; a carrier substrate; and a first connection layer connecting the carrier substrate and the semiconductor layer sequence.