Circuit for controlling leakage current in large scale integrate

Details Circuit for controlling leakage current in large scale integrate Circuit for controlling leakage current in large scale integrate

1997-09-10

2000-10-31

Cunningham, Terry D.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327530, G05F 302

Patent

active

061408646

ABSTRACT:
In an LSI circuit, respective voltages on power-source lines connected to the respective sources of transistors which are turned OFF in a circuit block in the standby state are controlled by a power-source-voltage control circuit to vary in response to variations in the threshold voltages of the transistors. Consequently, the differential voltage (Vgs-Vt) between the gate-to-source voltage Vgs of each of the transistors and the threshold voltage Vt thereof is held constant at a given value, so that an OFF-state leakage current flowing through the transistor in the circuit block in the standby state is reduced and held constant at a given value. What results is a reduction in the power consumption of the circuit block in the standby state.

REFERENCES:
patent: 4929884 (1990-05-01), Bird et al.
patent: 5408144 (1995-04-01), Sakata et al.
patent: 5561384 (1996-10-01), Reents et al.

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