Glass frit containing lead ruthenate or lead iridate in relative

Details Glass frit containing lead ruthenate or lead iridate in relative Glass frit containing lead ruthenate or lead iridate in relative

1974-11-07

1976-04-20

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

252514, 106 49, C03C 310, C03C 304, C03C 502, H01B 102

Patent

active

039516725

ABSTRACT:
Thick film resistive elements are prepared from an intimate admixture comprising silica, lead oxide and ruthenium dioxide or iridium dioxide which is heated to a temperature sufficient to provide a lead-containing glass having dispersed therein lead ruthenate or lead iridate. The lead-containing glass is comminuted and a resistor paste is formed which can be subsequently coated and fired on to a desired substrate to form the thick film resistive component. The method of this invention may facilitate the production of thick film resistors exhibiting a low temperature coefficient of resistivity, relative freedom from noise and drift, and high moisture resistance.

REFERENCES:
patent: 2739901 (1956-03-01), Herold et al.
patent: 3304199 (1967-02-01), Faber et al.
patent: 3352797 (1967-11-01), Kim
patent: 3673117 (1972-06-01), Schroeder
patent: 3682840 (1972-08-01), VanLoan
patent: 3769382 (1973-10-01), Kuo

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