Image sensor with high storage capacity per pixel

Details Image sensor with high storage capacity per pixel Image sensor with high storage capacity per pixel

1990-10-19

1991-10-08

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Recording apparatus

357 24, H04N 314

Patent

active

050559311

ABSTRACT:
Disclosed is a charge-transfer or charge-coupled (CCD) type device, aimed at increasing the charge storage capacity. The disclosed photosensitive device includes a plurality of photosensitive cells. Each photosensitive cell includes an elementary photosensitive zone beneath which there is formed a potential well. According to one characteristic, the potential well has a surface area greater than the surface area of the elementary photosensitive zone. The disclosure can be applied to charge-couped devices that include a non-photosensitive zone between the pixels.

REFERENCES:
patent: 4592029 (1986-05-01), Altman et al.
patent: 4771183 (1988-09-01), McGlynn
patent: 4870494 (1989-09-01), Tabei
patent: 4890164 (1989-12-01), Taker et al.
patent: 4987494 (1991-01-01), Freeman
SPIE Optical Sensors and Electronic Photography, vol. 1071, 1989, J. Janesick, et al., "Charge-Coupled Device Pinning Technologies", pp. 153-169.
Patent Abstracts of Japan, vol. 6, No. 9 (E-90) (887), Jan. 20, 1982, & JP-A-56 131976, Oct. 15, 1981, K. Sekine, "Manufacture of Solid Image Photographing Device".
Patent Abstracts of Japan, vol. 6, No. 16 (E-92) (894), Jan. 29, 1982, & JP-A-56 136086, Oct. 23, 1981, Y. Miyamoto, "Two-Dimensional Image Pickup Device".

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