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:
Oct. 29, 2002
Filed:
Feb. 03, 1999
Keisuke Hatano, Tokyo, JP;
Yasutaka Nakashiba, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A solid-state imaging device comprises: an electric charge transfer portion for transferring an electric charge produced in a photodetector through photoelectric conversion from incident light to the electric charge; and, an output amplifier portion for detecting the electric charge to issue a signal. The charge transfer portion is provided with a first gate insulation film having a sufficient film thickness to keep a predetermined transfer efficiency. The output amplifier portion is provided with a second gate insulation film having a film thickness suitable for obtaining a predetermined mutual conductance capable of increasing the gain of the output amplifier portion.