Cadmium-free and lead-free thick film conductor composition

Details Cadmium-free and lead-free thick film conductor composition Cadmium-free and lead-free thick film conductor composition

1994-08-01

1995-08-08

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 16, 501 19, 501 20, 501 21, 501 73, 501 79, 252514, 252518, C03C 3062, C03C 818

Patent

active

054398525

ABSTRACT:
The invention is directed to a thick film paste composition comprising electrically conductive particles and finely divided particles of a glass composition comprising by mole % 5-70% Bi.sub.2 O.sub.3, 18-35% SiO.sub.2, 0.1-40% CuO, 0.5-25% ZnO, 0.5-40% CoO, 0.5-40% Fe.sub.2 O.sub.3, and 0.5-40% MnO, which the glass composition is free of lead and cadmium, all dispersed in an organic medium.

REFERENCES:
patent: 2278867 (1942-04-01), Deyrup
patent: 4282035 (1981-08-01), Nigrin
patent: 4554258 (1985-11-01), Francel
patent: 5096620 (1992-03-01), Ditz et al.
patent: 5244848 (1993-09-01), Clifford et al.
patent: 5252521 (1993-10-01), Roberts
Derwent Abstract for DE 4128804 A1, Mar. 1993.
Derwent Abstract for J 02204904-A, Aug. 1990.

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