Copper conductor composition

Details Copper conductor composition Copper conductor composition

1989-02-01

1990-06-26

Barr, Josephine

Compositions

Electrically conductive or emissive compositions

Free metal containing

252518, 252519, 106 113, 106 129, H01B 106

Patent

active

049370162

ABSTRACT:
A copper conductor composition comprising a copper powder, an inorganic oxide powder, a glass powder and an organic vehicle, said copper powder having an average particle size of 0.5 to 3 .mu.m, a tap density of 3.0 to 5.0 g/cm.sup.3, and an oxygen content of 0.05 to 0.15% by weight. Zinc oxide powder and, optionally, nickel powder are used as the inorganic oxide powder. The composition which contains the copper powder having such an oxygen content as low as 0.05 to 0.15% by weight, can provide copper conductors having excellent conductor properties such as solderability, adhesive strength and matching property to resistances.

REFERENCES:
patent: 4409261 (1983-10-01), Kwo
patent: 4521329 (1985-06-01), Siuta et al.
patent: 4540604 (1985-09-01), Siuta
patent: 4687597 (1987-08-01), Siuta
patent: 4714570 (1987-12-01), Nakatani et al.

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