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. 04, 2025
Filed:
Dec. 29, 2022
Epistar Corporation, Hsinchu, TW;
Aurelien Gauthier-Brun, Hsinchu, TW;
Chao-Hsing Chen, Hsinchu, TW;
Chang-Tai Hsaio, Hsinchu, TW;
Chih-Hao Chen, Hsinchu, TW;
Chi-Shiang Hsu, Hsinchu, TW;
Jia-Kuen Wang, Hsinchu, TW;
Yung-Hsiang Lin, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
A light-emitting device includes a first semiconductor layer; a semiconductor pillar formed on the first semiconductor layer, including a second semiconductor layer and an active layer, wherein the semiconductor pillar comprises an outmost periphery; a first contact layer formed on the first semiconductor layer and including a first contact portion and a first extending portion, wherein the first extending portion continuously surrounds an entirety of the outmost periphery of the semiconductor pillar and the first contact portion; a second contact layer formed on the second semiconductor layer; a first insulating layer including multiple first openings exposing the first contact layer and multiple second openings exposing the second contact layer; a first electrode contact layer connected to the first contact portion through the multiple first openings and covering all of the first contact layer; a second electrode contact layer connected to the second contact layer through the multiple second openings.