Charge transfer device

Details Charge transfer device Charge transfer device

1989-03-29

1990-07-03

James, Andrew J.

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

Counting or dividing in incremental steps

Beam type tube

357 47, 357 48, 377 57, 377 58, 377 60, 377 62, 377 63, H01L 2978, H01L 2702, H01L 2704

Patent

active

049395602

ABSTRACT:
A charge transfer device, suitable for use, for example, in a solid state imager device, having a floating gate electrode in a charge detecting section, a protruding portion provided in at least one of the floating gate electrodes or a gate electrode arranged adjacent to the floating gate electrode, wherein the floating gate electrode and the gate electrode arranged adjacent to the floating gate electrode overlap each other at the protruding portion within an insulating layer, and whereby the parasitic capacitance associated with the floating gate electrode is decreased and the charge voltage converting gain is increased, rendering it possible to obtain an image signal with a good signal
oise ratio, when the charge transfer device is used for a solid state imager device.

REFERENCES:
patent: 4171521 (1979-10-01), Wang et al.
patent: 4179793 (1979-12-01), Hagiwara
patent: 4538287 (1985-08-01), Roberts et al.
patent: 4691218 (1987-09-01), Bondewijns

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