Gas sensor used in leak detectors or alarm units

Details Gas sensor used in leak detectors or alarm units Gas sensor used in leak detectors or alarm units

1993-11-22

1995-10-10

Crane, Sara W.

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

Field effect device

Responsive to non-optical, non-electrical signal

257252, 257414, 73 3105, 73 3106, 340632, 340634, H01L 2966, H01C 700, G01N 2704, G08B 1710

Patent

active

054573335

ABSTRACT:
The invention relates to a gas sensor comprises a precious metal electrode, a semiconductor layer entirely or partly covering the precious metal electrode, a barrier layer having a high potential formed at an interface between the precious metal electrode and the semiconductor layer.

REFERENCES:
patent: 4030340 (1977-06-01), Chang
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patent: 4198850 (1980-04-01), Firth et al.
patent: 4358951 (1982-11-01), Chang
patent: 4574264 (1986-03-01), Takahashi et al.
patent: 4608549 (1986-08-01), Fukui
patent: 4849180 (1989-07-01), Fukui
patent: 5006828 (1991-04-01), Yutaka et al.
patent: 5047214 (1991-09-01), Fukui et al.
Patent Abstract of Japan/Publication No. JP63109357/Combustion Safety Apparatus/Koda Hiroshi.
Patent Abstract of Japan/Publication No. JP62201344/Gas Sensor/Nakano Tomoyasu.

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