Resistor composition and method for its manufacture
AssigneeShoei Kagaku Kogyo Kabushiki Kaisha
InventorEiichi Asada
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Abstract
A resistor composition and process for making the same which comprises a conductive material, a glass frit and a vehicle therefor or a conductive material, a glass frit, an insulating or semiconductive metal oxide and a vehicle therefor, the weight ratio of said conductive material, said glass frit and said metal oxide, when the latter is present, being maintained substantially constant, wherein the resistance value of said composition is established by varying the total surface area of said conductive material, and said glass frit and, when applicable, said metal oxide, without changing the temperature coefficient of resistance of said composition.
Claims9
A process for varying the resistance value of a resistor composition containing 10-60 parts by weight of a conductive material selected from the group consisting of gold, silver, platinum, rhodium, ruthenium, osmium, iridium, vanadium, tin, tungsten, carbon and alloys, mixtures and oxides thereof, said conductive material having a known specific surface area, 90-40 parts by weight of a glass frit having a known specific surface area, and a vehicle therefor which comprises increasing or decreasing the total surface area of said conductive material and glass frit while maintaining the weight ratio of said conductive material to said glass frit constant without changing the temperature coefficient of resistance of said composition.
Dependencies are inferred from the claim text.