MISFET for reducing leakage current

Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – Field effect transistor

Reexamination Certificate

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Details

C257S347000, C257SE21564

Reexamination Certificate

active

07126170

ABSTRACT:
A MISFET according to this invention includes: a substrate having a semiconductor layer; an active region formed in the semiconductor layer; a gate insulator formed on the active region; a gate formed on the gate insulator; and a source region and a drain region, wherein: the active region is formed, in plan view, to have a body portion and a projecting portion projecting from a periphery of the body portion; the gate is formed, in plan view, to intersect the body portion of the active region, cover a pair of connecting portions connecting a periphery of the projecting portion to the periphery of the body portion and allow a part of the projecting portion to project from a periphery of the gate; and the source region and the drain region are formed in regions of the body portion of the active region which are situated on opposite sides of the gate in plan view, respectively.

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English Language Translation of Form 409 Patentability report in PCT/JP2004/000123 (indicating all claims unpatentable).
Iwamatsu, Toshiaki., et al. CAD-Compatible High Speed CMOS/SIMOX Gate Array Using Field-Shield Isolation, IEEE Transactions on Electron Devices, vol. 42, No. 11, Nov. 1995, pp. 1934-1939.
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Iwamatsu, Toshiaki., et al. Investigation of Anomalous Leakage Current in Mesa-Isolated SOI MOSFET's, IEEE Electron Device Letters, vol. 18, No. 10, Oct. 1997, pp. 499-502.

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