Structure and driving method of interline transfer CCD image sen

Details Structure and driving method of interline transfer CCD image sen Structure and driving method of interline transfer CCD image sen

1986-08-08

1990-06-19

Munson, Gene M.

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

Counting or dividing in incremental steps

Beam type tube

357 30, 377 60, H01L 2978, H01L 2714, H01L 3100, G11C 1928

Patent

active

049357948

ABSTRACT:
An interline transfer CCD image sensor includes a plurality of PN junction photosensor elements disposed in a matrix fashion. A plurality of columns of shift register are associated with the matrix aligned PN junction photosensor elements. Each CCD shift register includes a plurality of register elements, each of which includes a buried channel connected to a corresponding PN junction photosensor element via a transfer gate as a potential barrier. A register electrode formed on the buried channel is extended toward the corresponding PN junction photosensor element to cover the transfer gate as the potential barrier. Drive signals are applied to the register electrodes to control the charge transfer operation from the PN junction photosensor to the buried channel in addition to controlling the shift operation in the shift register, thereby eliminating the need for channel stoppers for isolating the photosensor elements.

REFERENCES:
patent: Re30917 (1982-04-01), Hagiwara et al.
patent: 3789267 (1974-01-01), Krambeck et al.
patent: 3856989 (1974-12-01), Weimer
patent: 4117514 (1978-09-01), Terui et al.
patent: 4489423 (1984-12-01), Suzuki
patent: 4518978 (1985-05-01), Takeshita

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