Switch semiconductor integrated circuit

Details Switch semiconductor integrated circuit Switch semiconductor integrated circuit

2006-04-11

2006-04-11

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

C327S308000

Reexamination Certificate

active

07026858

ABSTRACT:
A switch semiconductor integrated circuit having a switch FET for controlling passage of a high-frequency signal so that the switch FET is switched between on-operation and off-operation. The switch semiconductor integrated circuit includes a logic control section using of an inverter circuit which generates the switching signal in accordance with a control signal applied from outside. The inverter circuit uses a junction-type FET in which the gate of the switch FET is connected to an output end of the inverter circuit via a gate resistor, and the output end is connected to a coupling capacitor which couples a part of the high-frequency signal. The coupled high-frequency signal is rectified by an equivalent diode between the gate and drain of the junction-type FET, and is superposed onto a DC voltage applied to the gate of the switch FET.

REFERENCES:
patent: 5563545 (1996-10-01), Scheinberg
patent: 5633610 (1997-05-01), Maekawa et al.
patent: 5767721 (1998-06-01), Crampton
patent: 5945867 (1999-08-01), Uda et al.
patent: 5990580 (1999-11-01), Weigand
patent: 6201455 (2001-03-01), Kusunoki
patent: 6229370 (2001-05-01), Inamori et al.

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