Substrate potential generator

Details Substrate potential generator Substrate potential generator

1991-06-04

1994-08-23

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072968, 307350, H03L 100, H03L 500

Patent

active

053410351

ABSTRACT:
In a substrate potential generator, a substrate potential is supplied by a substrate potential supplier controlled by a substrate potential detector. The substrate potential detector sends a setting signal having a hysteresis characteristic relative to the substrate potential. That is, the setting signal is higher when the substrate potential supplier is stopped than when the substrate potential supplier is activated or when negative charges are injected into the substrate potential. Thus, the operation of the substrate potential supplier is stopped after the substrate potential becomes lower than the lower setting potential when the substrate potential supplier is activated, while the operation of the substrate potential supplier is started after the substrate potential becomes higher than the upper setting potential after the operation of the substrate potential supplier is stopped. Therefore, the starting and stopping of the substrate potential supplier is not repeated so frequently, so that the dissipating charge and discharge currents accompanied with the starting and stopping will not be enhanced wastefully.

REFERENCES:
patent: 4670668 (1987-06-01), Liu
patent: 4775959 (1988-10-01), Sato et al.
patent: 4794278 (1988-12-01), Vajdic
patent: 4862415 (1989-08-01), Nakano
patent: 4905199 (1990-02-01), Miyamoto
patent: 4961007 (1990-10-01), Kumanoya et al.
patent: 4961167 (1990-10-01), Kumanoya et al.
patent: 5003197 (1991-03-01), Nojima et al.
patent: 5057704 (1991-10-01), Koyanagi et al.

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