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:
May. 11, 2021
Filed:
Sep. 12, 2019
Applicant:
Epistar Corporation, Hsinchu, TW;
Inventors:
Wen-Luh Liao, Hsinchu, TW;
Chih-Chiang Lu, Hsinchu, TW;
Shih-Chang Lee, Hsinchu, TW;
Hung-Ta Cheng, Hsinchu, TW;
Hsin-Chan Chung, Hsinchu, TW;
Yi-Chieh Lin, Hsinchu, TW;
Assignee:
EPISTAR CORPORATION, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H01L 33/30 (2010.01); H01L 33/20 (2010.01); H01L 33/42 (2010.01);
U.S. Cl.
CPC ...
H01L 33/20 (2013.01); H01L 33/0062 (2013.01); H01L 33/0093 (2020.05); H01L 2933/0091 (2013.01);
Abstract
The present disclosure provides a light-emitting device and manufacturing method thereof. The light-emitting device comprising: a light-emitting stack; and a semiconductor layer having a first surface connecting to the light-emitting stack, a second surface opposite to the first surface, and a void; wherein the void comprises a bottom part near the first surface and an opening on the second surface, and a dimension of the bottom part is larger than the dimension of the opening.