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:
Jun. 04, 2019
Filed:
Mar. 21, 2018
Applicant:
Hongik University Industry-academia Cooperation Foundation, Seoul, KR;
Inventors:
Ho Young Cha, Seoul, KR;
Jongik Kang, Seoul, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/107 (2006.01); H01L 31/02 (2006.01); H01L 31/0216 (2014.01); H01L 31/0304 (2006.01); H01L 31/0312 (2006.01);
U.S. Cl.
CPC ...
H01L 31/02027 (2013.01); H01L 31/02164 (2013.01); H01L 31/0312 (2013.01); H01L 31/03044 (2013.01); H01L 31/107 (2013.01); Y02E 10/50 (2013.01);
Abstract
Disclosed is a quenching circuit including an avalanche photodiode and a quenching diode applying a bias voltage to the avalanche photodiode. Since the quenching circuit includes the quenching diode instead of a quenching resistor, the avalanche photodiode can quickly recover to linear mode from Geiger mode, and the bias voltage applied to the avalanche photodiode is stably maintained even though a current level of the avalanche photodiode fluctuates according to the intensity of incident light.