Solid state photosensitive devices

Details Solid state photosensitive devices Solid state photosensitive devices

1987-05-13

1988-08-30

Munson, Gene M.

Electrical pulse counters, pulse dividers, or shift registers: c

Charge transfer device

Particular input or output means

307311, 357 24, 357 30, G11C 1928, H01L 2978, H01L 2714, H01L 3100

Patent

active

047682116

ABSTRACT:
The present invention relates to an improvement to solid state photosensible devices of the type having a charge storing capacitor preceding the charge--voltage conversion stage. The photosensitive device of the invention comprises photosensitive detectors, each detector being connected to a charge integration cell, which is itself connected via a multiplexer to a charge--voltage conversion stage, preceded by a first storage capacitor connected to a resetting means with a supplementary storage capacitor located upstream of the first capacitor. The bias voltage of the supplementary capacitor can be brought to a high or a low level, as a function of the charge quantity to be integrated, for modifying the value of the capacitor receiving the charges.

REFERENCES:
patent: 4093872 (1978-06-01), Hartman et al.
patent: 4473836 (1984-09-01), Chamberlain

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