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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.:

US 11158757 B1

PDFFull Text
Date of Patent:
Oct. 26, 2021

Filed:

Nov. 27, 2019

Optical sensing device and optical sensing system thereof comprising a light receiving device capable of receiving a first received wavelength having a largest external quantum efficiency

Applicant:

Epistar Corporation, Hsinchu, TW;

Inventors:

Yi-Chieh Lin, Hsinchu, TW;

Shiuan-Leh Lin, Hsinchu, TW;

Yung-Fu Chang, Hsinchu, TW;

Shih-Chang Lee, Hsinchu, TW;

Chia-Liang Hsu, Hsinchu, TW;

Yi Hsiao, Hsinchu, TW;

Wen-Luh Liao, Hsinchu, TW;

Hong-Chi Shih, Hsinchu, TW;

Mei-Chun Liu, Hsinchu, TW;

Assignee:

EPISTAR CORPORATION, Hsinchu, TW;

Attorney:
Primary Examiner:

Que Tan Le

Int. Cl.
CPC ...
H01L 31/0304 (2006.01); H01L 31/167 (2006.01); H01L 31/0232 (2014.01); H01L 31/02 (2006.01); H01L 25/16 (2006.01); A61B 5/024 (2006.01); A61B 5/021 (2006.01); A61B 5/1455 (2006.01); A61B 5/145 (2006.01); G01J 3/10 (2006.01);
U.S. Cl.
CPC ...
H01L 31/167 (2013.01); A61B 5/02141 (2013.01); A61B 5/02427 (2013.01); A61B 5/02433 (2013.01); A61B 5/14546 (2013.01); A61B 5/14552 (2013.01); G01J 3/10 (2013.01); H01L 25/167 (2013.01); H01L 31/02005 (2013.01); H01L 31/02325 (2013.01); H01L 31/03046 (2013.01);
Abstract

This disclosure discloses an optical sensing device. The device includes a carrier body; a first light-emitting device disposed on the carrier body; and a light-receiving device including a group III-V semiconductor material disposed on the carrier body, including a light-receiving surface having an area, wherein the light-receiving device is capable of receiving a first received wavelength having a largest external quantum efficiency so the ratio of the largest external quantum efficiency to the area is ≥13.

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