Electrical resistor material, resistor made therefrom and method

Details Electrical resistor material, resistor made therefrom and method Electrical resistor material, resistor made therefrom and method

1975-09-15

1982-03-30

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of quartz or glass

252518, 252519, 252520, 338308, 427101, 4271262, 4271263, 4273762, 427377, 428427, 428428, 428697, 428701, 428702, B32B 1706, H01B 106

Patent

active

043224776

ABSTRACT:
A vitreous enamel resistor material comprising a mixture of a vitreous glass frit and fine particles of tin oxide (SnO.sub.2). An electrical resistor is made from the resistor material by applying the material to a substrate and firing the coated substrate to a temperature at which the glass melts. The tin oxide is preferably heat treated prior to mixing with the glass frit. Upon cooling, the substrate has on the surface thereof, a film of the glass having the particles of the tin oxide embedded therein and dispersed therethroughout. The resistor material provides a resistor having a wide range of resistivity and a low temperature coefficient of resistance.

REFERENCES:
patent: 2564707 (1951-08-01), Mochel
patent: 2717946 (1955-09-01), Peck
patent: 3044901 (1962-07-01), Garnsworthy
patent: 3108019 (1963-10-01), Davis
patent: 3488767 (1970-06-01), Collins
patent: 3546015 (1970-12-01), Vulliez
patent: 3669907 (1972-06-01), Kohashi
patent: 3923698 (1975-12-01), Kamigaito
patent: 4061827 (1976-03-01), Gould
Burkett, R. H. W., "Tin Oxide Resistors", J. Brit. I.R.E., Apr. 1961, pp. 301-304.
Dearden, J., "High Valve, High Voltage Resistors", Electronic Components, Mar. 1967, pp. 259-263.

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