Electrical resistors – Resistance value responsive to a condition – Gas – vapor – or moisture absorbing or collecting
Patent
1983-04-27
1984-11-06
Albritton, C. L.
Electrical resistors
Resistance value responsive to a condition
Gas, vapor, or moisture absorbing or collecting
73 23, 73 27R, 422 94, 422 98, G01N 2704, H01L 700
Patent
active
044814992
ABSTRACT:
A gas detector with a layer of gas sensing material comprising an oxide semiconductor, wherein at least one coating layer each of a p-type oxide semiconductor and an n-type oxide semiconductor is provided in a multi-layer arrangement on the surface of said layer of gas sensing material that contacts the gas. The gas detector can selectively identify only specific gases.
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Arima Hideo
Ito Mitsuko
Kaneyasu Masayoshi
Albritton C. L.
Hitachi , Ltd.
Sears Christopher N.
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