Semiconductor device

Details Semiconductor device Semiconductor device

2005-06-17

2008-11-25

Wai-Sing, Louie (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257SE45002

Reexamination Certificate

active

07456480

ABSTRACT:
A semiconductor device includes an input terminal, a first aging device whose source is connected to the input terminal to turn on at τ1and turn off at τ2(>τ1), a second aging device whose source is connected to the input terminal, whose gate is connected to the drain of the first aging device, and whose drain is connected to the gate of the first aging device to turn on at τ3and turn off at τ4(>τ3), a first switch whose one terminal is connected to the drain of the first aging device to turn off when the second aging device is on, a second switch whose one terminal is connected to the drain of the second aging device to turn off when the first aging device is on, and an output terminal connected to the other terminals of the first and second switch elements.

REFERENCES:
patent: 6498957 (2002-12-01), Umetsu
patent: 6768286 (2004-07-01), Trembley
patent: 2004/0061518 (2004-04-01), Watanabe et al.
patent: 2004/0150468 (2004-08-01), Shimizu et al.
patent: 2006/0087360 (2006-04-01), Watanabe
patent: 2004-94922 (2004-03-01), None
patent: 2004-172404 (2004-06-01), None
patent: 2004-326981 (2004-11-01), None
U.S. Appl. No. 12/015,147, filed Jan. 16, 2008, Watanabe, et al.
U.S. Appl. No. 12/049,715, filed Mar. 17, 2008, Watanabe, et al.
U.S. Appl. No. 11/469,706, filed Sep. 1, 2006, Watanabe, et al.

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