Substrate bias voltage controlling circuit in semiconductor memo

Details Substrate bias voltage controlling circuit in semiconductor memo Substrate bias voltage controlling circuit in semiconductor memo

1996-04-26

1998-04-28

Cunningham, Terry

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327534, G05F 110

Patent

active

057449970

ABSTRACT:
A substrate bias voltage controlling circuit controls the generation of different substrate bias voltages according to specific modes. A first sensing signal generator is controlled by the substrate bias voltage and generates a first sensing signal when the level of the substrate bias voltage is higher than a predetermined first potential level. A second sensing signal generator is controlled by the substrate bias voltage and a specific mode signal and generates a second sensing signal when the level of the substrate bias voltage is higher than a predetermined second potential level and when the mode signal is enabled.

REFERENCES:
patent: 4775959 (1988-10-01), Sato et al.
patent: 4961167 (1990-10-01), Kumanoya et al.
patent: 4964082 (1990-10-01), Sato et al.
patent: 5270584 (1993-12-01), Koshikawa et al.
patent: 5506540 (1996-04-01), Sakurai et al.
patent: 5557221 (1996-09-01), Taguchi et al.
patent: 5602506 (1997-02-01), Kim et al.

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