Semiconductor integrated circuit device

Details Semiconductor integrated circuit device Semiconductor integrated circuit device

2006-06-13

2006-06-13

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

C327S436000

Reexamination Certificate

active

07061302

ABSTRACT:
In a conventional semiconductor integrated circuit device, a means for preventing a backflow current has a high on-state resistance, which makes it impossible to reduce the voltage loss in normal operation. A semiconductor integrated circuit device of the invention has a first MOS transistor, a second MOS transistor provided between the first MOS transistor and a power supply terminal, and a means that, in normal operation, keeps the gate of the second MOS transistor at a predetermined potential (preferably the ground potential) and that, when a backflow current is likely, turns the second MOS transistor off. This helps prevent a backflow current while reducing the voltage loss in normal operation.

REFERENCES:
patent: 6496036 (2002-12-01), Kan
patent: 6525594 (2003-02-01), Fugate et al.
patent: 10-341141 (1998-12-01), None
patent: 2002-335626 (2002-11-01), None

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