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:
Apr. 14, 2015
Filed:
Dec. 21, 2012
Applicant:
Hiroki Sasaki, Kanagawa, JP;
Inventor:
Hiroki Sasaki, Kanagawa, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/00 (2006.01); H01L 31/0312 (2006.01); H01L 31/18 (2006.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 31/0312 (2013.01); H01L 31/1812 (2013.01); H01L 27/14609 (2013.01); H01L 27/1461 (2013.01); H01L 27/14621 (2013.01); H01L 27/14627 (2013.01); H01L 27/14634 (2013.01); H01L 27/1464 (2013.01);
Abstract
According to one embodiment, a solid state imaging device includes a first SiGe layer provided at an uppermost layer of a photoelectric conversion layer from the viewpoint of an incident light side, and a second SiGe layer provided under the first SiGe layer in the photoelectric conversion layer and having a higher Ge concentration than the first SiGe layer.