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. 21, 2015
Filed:
Mar. 06, 2013
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/15 (2006.01); H01L 21/00 (2006.01); H01L 31/02 (2006.01); H01L 31/18 (2006.01); H01L 31/0216 (2014.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 31/02 (2013.01); H01L 31/18 (2013.01); H01L 27/14627 (2013.01); H01L 31/0216 (2013.01); H01L 27/1464 (2013.01); H01L 27/14643 (2013.01);
Abstract
A solid-state imaging device according to embodiments of the present disclosure includes a light receiving unit, a first charge holding film, and a second charge holding film. The light receiving unit converts the incident light to an electric current. The first charge holding film is formed above the light receiving unit and holds electric charges. The second charge holding film is formed on the first charge holding film and holds electric charges. Further, concentration of oxygen in the second charge holding film is higher than concentration of oxygen in the first charge holding film.