Charge-coupled device floating diffusion output reset

Details Charge-coupled device floating diffusion output reset Charge-coupled device floating diffusion output reset

1990-04-26

1990-11-27

Munson, Gene M.

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

Charge transfer device

Particular input or output means

357 24, G11C 1928, H01L 2978

Patent

active

049742400

ABSTRACT:
A charge-coupled device including a semiconductor substrate of given conductivity type, a buried channel formed on the substrate of different conductivity type than the substrate, an electrically floating diffusion formed in the substrate of different conductivity type than the substrate, and a plurality of electrodes insulating from the buried channel. The electrodes are responsive to applied voltages for supplying a signal charge through the buried channel to the floating diffusion. The charged-coupled device also includes a transistor responsive to a pulse voltage signal for periodically resetting the floating diffusion to a predetermined potential. The transistor comprises an enhancement type surface channel field effect transistor.

REFERENCES:
patent: 4093872 (1978-06-01), Hartman et al.
Erb et al., "An Overlapping Electrode Buried Channel CCD" IEEE Int. Electron Devices Meeting (12/73), Tech. Dig. pp. 24-26.

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