Charge transfer device having a bent charge transfer channel

Details Charge transfer device having a bent charge transfer channel Charge transfer device having a bent charge transfer channel

1981-09-23

1983-09-06

Munson, Gene M.

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

Counting or dividing in incremental steps

Beam type tube

377 63, H01L 2978, G11C 1928

Patent

active

044032374

ABSTRACT:
In a charge transfer device wherein the charge transfer channel is bent through a predetermined angle of, for instance, 45.degree., 90.degree. or 180.degree., a unit of each bend includes at least two juxtaposed gate electrodes each of which has a portion bent by an angle equal to said predetermined angle relative to the axis of the preceding channel in such a way that the gate electrodes in the bend may be substantially equal in area to those in the straight charge transfer line sections and the channel length in the bend may be substantially equal to that in the straight charge transfer line section, whereby the decrease in transfer efficiency and S/N ratio due to the differences in gate area and channel length may be eliminated.

REFERENCES:
patent: 3971003 (1976-07-01), Kosonocky
patent: 4160262 (1979-07-01), Kovac
Lancaster et al., "A Recirculating CCD with Novel Input and Output Structures", IEEE Int. Electron Devices Meeting (12/74) Tech. Dig., pp. 108-111.
Walsh, "A 190X 244 Charge-Coupled Area Image Sensor . . . ", Symposium Charge-Coupled Device Technology for Scientific Imaging Applications, Pasadena, Calif. (3/75), Proc., pp. 137-149.

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