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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 11894481 B1

PDFFull Text
Date of Patent:
Feb. 06, 2024

Filed:

Oct. 26, 2021

Optical sensing device and optical sensing system thereof comprising light emitting device and light receiving device completely sandwiched by the topmost surface and bottommost surface of a carrier body with different vertically separated distances

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 31/02 (2006.01); H01L 31/167 (2006.01); H01L 31/0304 (2006.01); H01L 31/0232 (2014.01); H01L 25/16 (2023.01); 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 having a topmost surface; a first light-emitting device disposed on the carrier body and having a light-emitting surface; and a light-receiving device comprising a group III-V semiconductor material disposed on the carrier body and having a light-receiving surface. The light-emitting surface is separated from the topmost surface by first distant H, the light-receiving surface is separated from the topmost surface by a second distance H, and His different from H

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