Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

1998-06-11

2000-08-22

Kim, Jung Ho

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327565, 327566, 361631, G05F 302

Patent

active

061078697

ABSTRACT:
It is possible to reduce the voltage drop on sub-power supply lines for reducing the subthreshold current and thereby prevent the operating speed of a logic circuit from lowering. Main power supply lines are arranged along one side of a rectangular region including a MOS logic circuit whose subthreshold current must be reduced, and a plurality of sub-power supply lines are arranged on the region in the direction perpendicular to the main power supply lines. A plurality of switching MOS transistors for selectively electrically connecting the sub-power supply lines to the main power supply line are dispersedly arranged with respect to the main power supply line. By dispersedly arranging the switching MOS transistors with respect to the main power supply line, it is possible to reduce the equivalent resistance of the sub-power supply lines compared to the case where switching MOS transistors are provided at one place.

REFERENCES:
patent: 5309040 (1994-05-01), Nakano et al.
patent: 5781062 (1998-07-01), Mashiko et al.
patent: 5880604 (1999-03-01), Kawahara et al.

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