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. 31, 2017
Filed:
Oct. 02, 2015
Epistar Corporation, Hsinchu, TW;
Yi Lin Guo, Hsinchu, TW;
Chen Ou, Hsinchu, TW;
Chi Ling Lee, Hsinchu, TW;
Wei Han Wang, Hsinchu, TW;
Hung Chih Yang, Hsinchu, TW;
Chi Hung Wu, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
An LED manufacturing method includes steps of: providing a substrate including a first surface; forming a first portion of a first semiconductor layer on the first surface in a first atmosphere including a first carrier gas; and forming a second portion of the first semiconductor layer on the first portion in a second atmosphere including a second carrier gas; wherein a plurality of first cavities is formed on a surface of the first portion during forming the first portion; and wherein the plurality of first cavities is transformed to a plurality of second cavities during forming the second portion, and one of the second cavities includes a first inclined surface and a second inclined surface above the first inclined surface.