Humidity sensitive device

Details Humidity sensitive device Humidity sensitive device

1980-09-08

1982-05-04

Woodiel, Donald O.

Electrical resistors

Resistance value responsive to a condition

Gas, vapor, or moisture absorbing or collecting

29620, 73335, G01W 102

Patent

active

043284787

ABSTRACT:
A humidity sensitive device comprises a base body of a preferably porous semiconductive ceramic having a grain boundary. A high resistance layer is formed in the grain boundary of the semiconductive ceramic and exhibits a humidity sensitive characteristic. First and second electrodes for withdrawing an electrical signal are formed spaced from each other on at least one major surface of the semiconductive ceramic base.

REFERENCES:
patent: 3671913 (1972-06-01), Mamlya et al.
patent: 4015230 (1977-03-01), Nitta et al.
patent: 4086556 (1978-04-01), Nitta et al.

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