Electrical pulse counters – pulse dividers – or shift registers: c – Charge transfer device – Particular input or output means
Patent
1989-05-01
1989-11-14
Munson, Gene M.
Electrical pulse counters, pulse dividers, or shift registers: c
Charge transfer device
Particular input or output means
357 24, 357 30, 35821326, G11C 1928, H01L 2978, H01L 2714, H04N 314
Patent
active
048812498
ABSTRACT:
A matrix photodetector includes, for example, at the bottom of the memory zone, an ancillary zone with a region having an implantation of a type opposite to that of the substrate, parallel to the transfer channels and followed by a region for the passage of the charges, located so as to be an extension of the tranfer channels, and surmounted by an ancillary gate capable of receiving low or high ancillary control signals to apply, to the passage region, low or high ancillary potential levels, which are respectively smaller, in terms of absolute value, than the levels of low or high potentials produced by the other gates, thus enabling a first filtering of the charges to be done before they are transferred into the read-out butter, in removing unwanted charges to an anti-blooming device, notably of the type with insulating zone.
REFERENCES:
patent: 4245164 (1981-01-01), Funahashi
Patent Abstracts of Japan, vol. 10, No. 65 (E-388)[2122], Mar. 14, 1986; & JP-A-60 217 661 (Toshiba K.K.) Oct. 31, 1985.
Chautemps Jacques
Vidal Andre
"Thomson-CSF"
Munson Gene M.
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