Charge coupled device with electrically settable shift direction

Details Charge coupled device with electrically settable shift direction Charge coupled device with electrically settable shift direction

1975-06-18

1976-03-30

Edlow, Martin H.

357 23, H01L 2978

Patent

active

039478637

ABSTRACT:
A monolithic two-phase charge coupled MNOS device having on a substrate an oxide layer having alternate relatively thin and thick regions thereof and a nitride layer thereon. Alternate electrodes for distributing, respectively, first and second phase clock signals are provided on the nitride layer. Each electrode overlays both a thin region and an adjacent thick region in the oxide layer. The MNOS devices formed by an electrode, the nitride layer, a thin oxide region in the oxide layer, and the substrate have electrically alterable threshold voltages, which permits electrical alteration of the surface potential pattern, so that the direction of transfer of a charge packet during the shifting operation may be electrically predetermined.

REFERENCES:
patent: 3719866 (1973-03-01), Naber et al.
patent: 3767983 (1973-10-01), Berglund

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