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:
Feb. 03, 2009
Filed:
May. 17, 2006
Applicants:
Shouzi Tanaka, Nara-ken, JP;
Ryohei Miyagawa, Kyoto-fu, JP;
Inventors:
Shouzi Tanaka, Nara-ken, JP;
Ryohei Miyagawa, Kyoto-fu, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
Abstract
An inversion layer is formed in a part as a boundary between (a) a defect control layer formed along a trench surface for isolating pixel calls and (b) a photo diode. The defect control layer is a P-type, and the photo diode and the inversion layer are N-type. Here, an impurity concentration in the inversion layer is at least twice as high as an impurity concentration in the photo diode.