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US 4,381,945 AGranted
Thick film conductor compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorKumaran M. Nair
Life of this patent
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Abstract
Thick film conductor metallization comprising an admixture of finely divided particles of noble metal or alloy, low-melting, low viscosity glass, a spinel-forming metal oxide and an organo titanate.
Claims9
In a metallization composition for use in the manufacture of printed conductors comprising an admixture of finely divided particles of
- 30 to 80% by weight noble metal or alloy thereof,
- 1 to 20% by weight low-melting, low viscosity glass frit and
- 0.1 to 10% by weight inorganic metal oxide capable of reacting with Al.sub.2 O.sub.3 to form a spinel structure;
- the improvement comprising a hydrolyzable
- organotitanate alcoholate which is a source of positive titanium ions,
- the above-indicated functionality of the components being obtainable by firing the admixture to effect liquid phase sintering of the glass and noble metal.
3 more elements
Dependencies are inferred from the claim text.