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.

Date of Patent:
Dec. 06, 2022

Filed:

Aug. 26, 2020
Applicants:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;

Inventor:

Hisayuki Taruki, Kawasaki Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/3745 (2011.01); H01L 27/146 (2006.01); H04N 5/376 (2011.01); H04N 5/378 (2011.01); H01L 27/148 (2006.01);
U.S. Cl.
CPC ...
H04N 5/37457 (2013.01); H01L 27/14612 (2013.01); H01L 27/14636 (2013.01); H01L 27/14643 (2013.01); H01L 27/14831 (2013.01); H04N 5/378 (2013.01); H04N 5/3765 (2013.01);
Abstract

A solid-state imaging device includes a plurality of pixel cells, each of the pixel cells including a light receiving element, a floating diffusion, a first source follower circuit, and a second source follower circuit. The plurality of pixel cells are connected to an output signal line. The light receiving element photoelectrically converts incident light, and stores a signal charge. The floating diffusion converts the signal charge read out of the light receiving element into a signal voltage. The first source follower circuit is connected to the floating diffusion, and outputs an output voltage corresponding to the signal voltage. The second source follower circuit is connected in series with the first source follower circuit, and outputs a pixel signal corresponding to the output voltage.


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