Image sensor with sensing transistor having two gates and...

Television – Camera – system and detail – Solid-state image sensor

Reexamination Certificate

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C257S290000

Reexamination Certificate

active

08054359

ABSTRACT:
Provided is an image sensor including a sensing transistor having two gates and a method of operating the image sensor. The image sensor may include a photoelectric conversion device, a sensing transistor which may have a first gate connected to a floating diffusion region in which charges generated from the photoelectric conversion region are stored and a second gate separated from the first gate, a reset transistor that may be connected to the floating diffusion region and may reset a potential of the floating diffusion region, a control voltage source that may supply a control applied to the second gate, and a column output line which may be connected to a source of the sensing transistor.

REFERENCES:
patent: 6493030 (2002-12-01), Kozlowski et al.
patent: 6720592 (2004-04-01), Kindt et al.
patent: 6850278 (2005-02-01), Sakurai et al.
patent: 7719583 (2010-05-01), Lee et al.
patent: 7724295 (2010-05-01), Kobayashi et al.
patent: 7777169 (2010-08-01), Hong
patent: 7800675 (2010-09-01), Shah
patent: 7830439 (2010-11-01), Kishi
patent: 2006/0001061 (2006-01-01), Miyatake et al.

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