Solid-state imaging apparatus and driving method thereof

Details Solid-state imaging apparatus and driving method thereof Solid-state imaging apparatus and driving method thereof

2007-04-24

2007-04-24

Villecco, John M. (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S248000, C250S208100, C257S230000, C257S291000

Reexamination Certificate

active

10286313

ABSTRACT:
Each unit pixel includes a photodiode, a reading selection transistor, a reading transistor, an amplifying transistor, a reset transistor, and a horizontal selection transistor, and thus a MOS image sensor of a dot-sequential reading 5-Tr type is formed. The reading selection transistor and the reading transistor are formed with a two-layer gate structure, and gate potential of the reading selection transistor and the reading transistor is set to a negative potential. Thereby, a lower layer of a gate region of the reading transistor and the reading selection transistor is controlled to a negative potential. Thus, depletion in the lower layer region is suppressed to reduce leakage current.

REFERENCES:
patent: 5471245 (1995-11-01), Cooper et al.
patent: 6037577 (2000-03-01), Tanaka et al.
patent: 6566697 (2003-05-01), Fox et al.
patent: 6731337 (2004-05-01), Watanabe
patent: 6798451 (2004-09-01), Suzuki et al.
patent: 6822306 (2004-11-01), Mabuchi
patent: 6975357 (2005-12-01), Suzuki et al.
patent: 7045400 (2006-05-01), Mabuchi
patent: 7068315 (2006-06-01), Suzuki et al.
patent: 2005/0036051 (2005-02-01), Ueno et al.
patent: 2005/0062068 (2005-03-01), Mabuchi
patent: 2001024952 (2001-01-01), None
patent: 2003134399 (2003-05-01), None
Mabuchi et al.: “CMOS Image Sensors Comprised of Floating Diffusion Driving Pixels with Buried Photodiode”; Dec. 2004; IEEE Journal of Solid-State Circuits; vol. 39, No. 12, pp. 2408-2416.

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