Image sensor with gain control

Details Image sensor with gain control Image sensor with gain control

2007-01-19

2008-09-23

Lateef, Marvin M. (Department: 4146)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257S225000, C257S229000, C348S308000, C348S310000

Reexamination Certificate

active

07427790

ABSTRACT:
An image sensor having a plurality of pixels; each pixel includes one or more photosensitive elements that collect charge in response to incident light; one or more transfer mechanisms that respectively transfer the charge from the one or more photosensitive elements; a charge-to-voltage conversion region having a capacitance, and the charge-to-voltage region receives the charge from the one or more photosensitive elements; a first reset transistor connected to the charge-to-voltage conversion region; a second reset transistor connected to the first reset transistor, which in combination with the first reset transistor, selectively sets the capacitance of the charge-to-voltage conversion regions from a plurality of capacitances.

REFERENCES:
patent: 6730897 (2004-05-01), Guidash
patent: 6960796 (2005-11-01), Rhodes et al.
patent: 7030357 (2006-04-01), Lee
patent: 7075049 (2006-07-01), Rhodes et al.
patent: 2006/0103749 (2006-05-01), He

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