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:
Oct. 28, 2014
Filed:
May. 21, 2012
Applicant:
Eric Sanson, Grenoble, FR;
Inventor:
Eric Sanson, Grenoble, FR;
Assignee:
Societe Francaise de Detecteurs Infrarouges—Sofradir, Chatenay Malabry, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/00 (2006.01); H01L 27/146 (2006.01); H01L 27/148 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14603 (2013.01); H01L 27/14818 (2013.01); H01L 27/14623 (2013.01); H01L 27/14634 (2013.01); H01L 27/14636 (2013.01); H01L 27/14643 (2013.01); H01L 2224/16 (2013.01);
Abstract
The detection circuit of the Source Follower per Detector type comprises a photodiode connected to an integration node. A biasing circuit makes it possible to bias the photodiode between a first reverse-bias state and a second floating state. A readout circuit is connected to the integration node for generating a signal representative of the scene observed by the photodiode. A metal shielding is arranged around the integration node. The metal shielding is connected to an output of the readout circuit configured to have a potential varying in the same direction as the potential at the integration node.