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. 12, 2021
Filed:
Nov. 06, 2017
Applicant:
Epistar Corporation, Hsinchu, TW;
Inventors:
Kunal Kashyap, Hsinchu, TW;
Kun-Wei Kao, Hsinchu, TW;
Yih-Hua Renn, Hsinchu, TW;
Meng-Lun Tsai, Hsinchu, TW;
Zong-Xi Chen, Hsinchu, TW;
Hsin-Mao Liu, Hsinchu, TW;
Jui-Hung Yeh, Hsinchu, TW;
Hung-Chi Wang, Hsinchu, TW;
Assignee:
EPISTAR CORPORATION, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/414 (2006.01); H01L 29/778 (2006.01); H01L 23/34 (2006.01); G01N 27/02 (2006.01); H01L 29/20 (2006.01); H01L 29/205 (2006.01); H01L 29/10 (2006.01); H01L 23/31 (2006.01);
U.S. Cl.
CPC ...
G01N 27/414 (2013.01); G01N 27/02 (2013.01); G01N 27/4141 (2013.01); H01L 23/345 (2013.01); H01L 29/2003 (2013.01); H01L 29/205 (2013.01); H01L 29/7787 (2013.01); H01L 23/3171 (2013.01); H01L 29/1029 (2013.01); H01L 29/7786 (2013.01);
Abstract
A sensing device includes a first III-V compound stack and a second III-V compound stack. The first III-V compound stack has a first sensing area, and the second III-V compound stack has a second sensing area. A passivation layer fully covers the second sensing area. The first III-V compound stack is physically separated from the second III-V compound stack, and has material compositions and structures same as the second III-V compound stack.