Silk-screening dielectric paste for multilayer circuit fabricati

Compositions – Electrolytes for electrical devices

Patent

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Details

65 33, 106 396, 252 635, H01B 312, C03C 322

Patent

active

041522826

ABSTRACT:
A dielectric composition which may be used as an insulating silk-screening paste and is compatible with a copper-containing conductive silk-screened layer, such as used in multilayer circuit boards. The paste includes an organic carrier, a mixture of aluminum oxide, and one or more types of glass of the "short" type, of which at least one glass can be devitrified by dissolution of the aluminum oxide.

REFERENCES:
patent: 3586522 (1971-06-01), Hoffman
patent: 3706582 (1972-12-01), Meyer
patent: 3707499 (1972-12-01), Mason et al.
patent: 3778242 (1973-12-01), Francel et al.
patent: 3816172 (1974-06-01), Hoffman

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