Resistor compositions and resistors produced therefrom

Details Resistor compositions and resistors produced therefrom Resistor compositions and resistors produced therefrom

1982-12-01

1984-03-27

Barr, Josephine

Compositions

Electrically conductive or emissive compositions

Metal compound containing

252521, 106 124, 4271262, 4271265, 4273835, 428432, 428434, A01B 106

Patent

active

044393520

ABSTRACT:
Resistor compositions are disclosed which comprise: (a) ruthenium oxide; (b) glass; (c) at least one metal oxide selected from the group consisting of lanthanum oxide, neodymium oxide, praseodymium oxide and samarium oxide; and (d) an organic vehicle. Resistors are produced using this composition by firing a resistor film comprising ruthenium oxide, glass and at least one metal oxide selected from the group consisting of lanthanum oxide, neodymium oxide, praseodymium oxide and samarium oxide onto an electrically insulating substrate. The use of the metal oxides in the resistor compositions surprisingly improve the TCR (temperature coefficient of resistance) particularly in high resistance ranges, and brings the TCR close to zero. In addition to the effect of improving the TCR, the metal oxides increase resistance and improve noise and VCR (voltage coefficient of resistance) properties.

REFERENCES:
patent: 4101708 (1978-07-01), Larry
patent: 4160227 (1979-07-01), Ikegami et al.
patent: 4160748 (1979-07-01), Vodogawa et al.
patent: 4267074 (1981-05-01), Holmes et al.
patent: 4286251 (1981-08-01), Howell
patent: 4293839 (1981-10-01), Asada et al.
patent: 4312770 (1982-01-01), Yu et al.
patent: 4350618 (1982-09-01), Hilson et al.
patent: 4362656 (1982-12-01), Hounudaly

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