Abstract:
A printed microelectronic resistor having excellent stability, high reproducibility and a TCR less than about + OR - 500 ppm/*C (25*-150*C) is formed from a composition comprised of a glass binder and a silver chloride or cyanide salt free, homogeneous, finely divided powdered admixture of a resistive metal, silver and gold, the powder having a particle size of less than about 5 microns.
Abstract:
PALLADIUM OXIDE OR OTHER METAL OXIDE REISTORS FOR MICROELECTRONIC CIRCUITRY ARE PROVIDED WITH A HIGH DEGREE OF REPRODUCIBILITY AND STABILITY BY FIRST CONCENTRATING TO POWDER FORM A LIQUID MIXTURE OF A RESISTOR METAL-ORGANO METALLIC COMPOUND, AT LEAST ONE OTHER STABLILIZER METAL IN ORGANOMETALLIC FORM, AND AN ANTI-AGGLOMERATING AGENT WHICH WILL NOT BURN OFF DURING PROCESSING TO FINAL RESISTOR FORM. THE POWDER IS THEN ALLOYED AND THE RESISTOR METAL OXIDIZED. THE RESULTING ALLOY IS THEN FORMED INTO A RESISTOR PASTE BY ADMIXING IT WITH A GLASS BINDER (EITHER BEFORE OR AFTER OXIDATION) AND A LIQUID CARRIER VEHICLE. THE PASTE IS PRINTED IN THE DESIRED PATTERN, DRIED AND FIRED TO PRODUCE THE RESISTOR IN FINAL FORM.