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:
Aug. 16, 2022
Filed:
Feb. 25, 2020
Epistar Corporation, Hsinchu, TW;
Jar-Yu Wu, Hsinchu, TW;
Ching-Jang Su, Hsinchu, TW;
Chun-Lung Tseng, Hsinchu, TW;
Ching-Hsing Shen, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
A light-emitting device, includes: a semiconductor stack, including a top surface, wherein the top surface includes a first region and a second region which are coplanar; a current barrier layer formed on the first region, wherein the current barrier layer includes an insulating material; and a transparent conductive layer formed on the current barrier layer and the second region; and a first electrode formed on the transparent conductive layer; wherein the current barrier layer includes: an electrode region at a position corresponding to the first electrode, having a shape substantially the same as the first electrode; and a plurality of extension regions extending from the electrode region and not covered by the first electrode.