Printing paste vehicle, gold dispensing paste and method of usin

Details Printing paste vehicle, gold dispensing paste and method of usin Printing paste vehicle, gold dispensing paste and method of usin

1975-06-12

1977-06-28

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106171, 106189, 106193M;171, 252514, C09D 524

Patent

active

040323501

ABSTRACT:
A printing paste vehicle for use in dispensing solids on a substrate comprises at least one polar oxygenated solvent, a binding agent and an organic thixotrope in specified proportions. A solids dispensing paste composition comprises the vehicle, a glass binder and gold in specified proportions. A portion of the paste is deposited in the bottom of a cavity of a microelectronic package, and gradually heated to a temperature sufficient to allow the paste to flow and the gold and glass binder to settle to the bottom of the cavity. The vehicle is volatilized, and the component is subsequently fired to bond the gold to the bottom of the cavity.

REFERENCES:
patent: 3684533 (1972-08-01), Conwicke
patent: 3746568 (1973-07-01), Rybarczyk
patent: 3759727 (1973-09-01), Dietz et al.
patent: 3830651 (1974-08-01), Minneman et al.

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