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:
Feb. 23, 2021
Filed:
Apr. 22, 2019
Epistar Corporation, Hsinchu, TW;
Chen Ou, Hsinchu, TW;
Chun-Wei Chang, Hsinchu, TW;
Chih-Wei Wu, Hsinchu, TW;
Sheng-Chih Wang, Hsinchu, TW;
Hsin-Mei Tsai, Hsinchu, TW;
Chia-Chen Tsai, Hsinchu, TW;
Chuan-Cheng Chang, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
A light-emitting device includes a first semiconductor layer having an uppermost surface and a bottommost surface; a first light-emitting structure and a second light-emitting structure formed on the same first semiconductor layer, wherein the first semiconductor layer is continuous; a first trench formed between the first and the second light-emitting structures; and a second electrode formed on the second semiconductor layer and including a second pad and a plurality of second extending parts extending from the second pad; wherein the second pad is between the first and the second light-emitting structures, and the plurality of second extending parts extends to the first and the second light-emitting structures, respectively; wherein the first trench passes through the uppermost surface but does not extend to the bottommost surface; wherein the first trench includes an equal width in a top view.