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. 19, 2013
Filed:
Oct. 28, 2005
Toshihiko Omi, Chiba, JP;
Toshihiko Omi, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A photoelectric conversion device has pixel comprised of a first semiconductor region of a first conductivity type and a second semiconductor region of a second conductivity type disposed in the first semiconductor region. A first diffusion region of the first conductivity type is held at a predetermined potential, covers entirely the first semiconductor region, and covers only a part of an upper portion of the second semiconductor region. A second diffusion region of the second conductivity type covers a part of the upper portion of the second semiconductor region except for the part of the upper portion of the second semiconductor region covered by the first diffusion region. A thick oxide film covers entirely the first diffusion region and covers the upper portion of the second semiconductor region except for the part of the upper portion of the second semiconductor region covered by the second diffusion region.