| US 7,515,185 B2 | ||
| Solid-state imaging device | ||
| Nobuo Nakamura, Kanagawa (Japan); Tomoyuki Umeda, Kanagawa (Japan); Keiji Mabuchi, Kanagawa (Japan); Hiroaki Fujita, Kanagawa (Japan); Takashi Abe, Kanagawa (Japan); Eiichi Funatsu, Tokyo (Japan); and Hiroki Sato, Kanagawa (Japan) | ||
| Assigned to Sony Corporation, Tokyo (Japan) | ||
| Appl. No. 10/509,977 PCT Filed Apr. 04, 2003, PCT No. PCT/JP03/04338 § 371(c)(1), (2), (4) Date Mar. 14, 2005, PCT Pub. No. WO03/085964, PCT Pub. Date Oct. 16, 2003. |
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| Claims priority of application No. 2002-102046 (JP), filed on Apr. 04, 2002. | ||
| Prior Publication US 2005/0224841 A1, Oct. 13, 2005 | ||
| Int. Cl. H04N 5/335 (2006.01); H01L 27/148 (2006.01) | ||
| U.S. Cl. 348—294 [257/215] | 18 Claims |
| 1. A solid-state imaging device having a pixel portion comprised of a plurality of unit pixels and a peripheral circuit portion
for controlling the pixel portion, wherein the peripheral circuit portion operates with a first power supply voltage of a
first power supply system and the pixel portion operates with a second power supply voltage of a second power supply system
having a value different from that of the first power supply voltage,
said solid-state imaging device comprising:
a first power supply inputting portion for receiving as input the first power supply voltage of the first power supply system
from the outside and
a second power supply inputting portion for receiving as input the second power supply voltage from the outside and supplying
the same to the pixel portion;
a column area for storing signals of each pixel row adjoining said pixel portion;
a level shifting unit for converting a level of said first power supply voltage and supplying a power supply voltage generated
by said level shifting unit to a predetermined location; characterized in that:
said unit pixel has at least a photo-electric conversion unit generating a signal charge in accordance with an amount of light
received, a charge detection unit for acquiring a signal charge generated by said photoelectric conversion unit, a transferring
unit for transferring a signal charge generated by said photoelectric conversion unit to said charge detection unit, a resetting
unit for resetting said photo-electric conversion unit, and an amplifying unit for converting a signal charge of said charge
detection unit to an electric signal and outputting it to an output signal line, and
said level shifting unit supplies a level shifted power supply voltage to the transferring unit and resetting unit.
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