Novel silver compositions

Details Novel silver compositions Novel silver compositions

1977-03-11

1978-05-16

Padgett, Benjamin R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428210, 252514, 106 119, H01B 102

Patent

active

040900096

ABSTRACT:
Compositions useful for making electrical conductor patterns on a nonconductive substrate, the compositions comprising finely divided Pd/Ag and inorganic binder. The binder is free of bismuth oxide to reduce staining at conductor/resistor interfaces, and comprises certain proportions of glass, copper oxide, and pyrochlore-related oxide (lead ruthenate and/or copper bismuth ruthenate); lead oxide is optional. Despite the absence of bismuth oxide, aged adhesion is good, as is solder acceptance.

REFERENCES:
patent: 3374110 (1968-03-01), Miller
patent: 3553109 (1971-01-01), Hoffman
patent: 3776769 (1973-12-01), Buck et al.
patent: 3838071 (1974-09-01), Amin
patent: 3896055 (1975-07-01), Bouchard et al.
patent: 3951672 (1976-04-01), Langley et al.
patent: 3960777 (1976-06-01), Coyle

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