Constant voltage threshold device

Details Constant voltage threshold device Constant voltage threshold device

1978-06-30

1981-04-28

Larkins, William D.

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

323311, 307297, 307304, 357 22, 357 42, H01L 2704, G05F 1613

Patent

active

042648572

ABSTRACT:
Disclosed is a constant voltage threshold device for providing a substantially constant voltage across a pair of terminals. The threshold device includes a field effect device having source and drain regions formed into an isolated semiconductor region which, in turn, is formed into a substrate. The distance between the drain region of the field effect device and the substrate is directly related to the threshold voltage of the threshold device. The threshold voltage is also determined by the relative doping levels of the various semiconductor regions and the value of various fixed biasing potentials applied to the various electrodes of the threshold device.

REFERENCES:
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patent: 3619740 (1971-11-01), Nakanuma et al.
patent: 3639813 (1972-02-01), Kamoshida et al.
patent: 3764864 (1973-10-01), Okumura et al.
patent: 4033797 (1977-07-01), Dill et al.
patent: 4053916 (1977-10-01), Cricchi et al.
patent: 4066917 (1978-01-01), Compton et al.
patent: 4131908 (1978-12-01), Daub et al.
National Semiconductor CMOS Databook (National, 1977) pp. 2-27.
RCA COS/MOS Integrated Circuits Manual, #CMS-270, (RCA, 1971), pp. 25 and 51.
Asai et al., 1976 IEEE IEDM Tech. Digest, pp. 185-187, (Dec. 1976), "Back-Gate Input MOS . . . ".

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