Nonlinear resistor with electrodes formed by plasma spraying

Electrical resistors – Resistance value responsive to a condition – Current and/or voltage

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338 20, H01L 713

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061632457

ABSTRACT:
A nonlinear resistor is formed by forming side surface insulating layer 2 on a sintered body 1 which contains zinc oxide as a main component and providing a pair of electrodes 3 on upper and lower surfaces of the sintered body 1. The electrodes 3 are formed by plasma thermal spraying of less than 10 kW in an atmosphere in which an oxygen concentration is set to 22 volume % or less. The electrodes 3 are formed of aluminum, copper, zinc, nickel, silver, or their alloy whose average particle size is within 5 .mu.m to 50 .mu.m. Preferably porosity is less than 15%, weight percentage of metal oxide is less than 25%, average film thickness is within 5 .mu.m to 500 .mu.m, average surface roughness is less than 8 .mu.m, and resistivity is less than 15 .mu..OMEGA..multidot.cm. Accordingly, the nonlinear resistor having the excellent discharge withstand can be provided.

REFERENCES:
patent: 2796505 (1957-06-01), Bocciarelli
patent: 3496512 (1970-02-01), Matsuoka
patent: 3872419 (1975-03-01), Groves et al.
patent: 4451815 (1984-05-01), Sakshaug et al.
patent: 4452728 (1984-06-01), Carlson et al.
patent: 4736183 (1988-04-01), Yamazaki et al.
patent: 4835508 (1989-05-01), Seike et al.
patent: 4853670 (1989-08-01), Stengard
patent: 4959632 (1990-09-01), Uchida
patent: 5509558 (1996-04-01), Imai et al.
patent: 5874885 (1999-02-01), Chandler et al.
Patent Abstracts of Japan, vol. 14, No. 229 (E-0928), May 15, 1990, & JP 02 058807 (Matsushita Electric Ind. Co., Ltd.) Feb. 28, 1990 (Abstract).
Database WPI Week 862830 May 1986, Derwent Pub. Ltd., London, GB; XP002097822 & JP 61 112301 (Matsushita), May 30, 1986 (Abstract).
Database WPI, Week 8230, Derwent Pub. Ltd., London, GB; XP002097823 & JP 57 099708, Jun. 21, 1982 (Abstract).

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