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:
Jan. 13, 2004
Filed:
Jun. 21, 2002
Takashi Miida, Kanagawa, JP;
Innotech Corporation, , JP;
Abstract
A solid state imaging device includes a MOS image sensor of a threshold voltage modulation system employed in a video camera, an electronic camera, an image input camera, a scanner, a facsimile, or the like. The solid state imaging device includes a photo diode formed in a second semiconductor layer of opposite conductivity type in a first semiconductor layer of one conductivity type, and a light signal detecting insulated gate field effect transistor formed in a fourth semiconductor layer of the opposite conductivity type in a third semiconductor layer of one conductivity type adjacent to the photo diode. A carrier pocket is provided in the fourth semiconductor layer and a portion of the first semiconductor layer under the second semiconductor layer is thicker than that portion of the third semiconductor layer under the fourth semiconductor layer.