Process for selectively applying a metal coating to the metallic

Details Process for selectively applying a metal coating to the metallic Process for selectively applying a metal coating to the metallic

1974-10-04

1977-02-08

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204224R, C25D 502, C25D 1716

Patent

active

040070972

ABSTRACT:
A process and a device for selectively applying a metal coating, more particularly of a precious metal such as gold, to the metal parts of electrical components such as transistors, diodes and similar elements passed through an insulator means are provided for immersing the parts to be coated in a chemically active electrolyte and the parts not to be coated in a chemically inactive electrolyte and connecting the two electrolytes to the opposite polarities of the current source.

REFERENCES:
patent: 3304244 (1967-02-01), Granitsas
patent: 3419480 (1968-12-01), Schmidt
patent: 3506887 (1970-04-01), Gutteridge
patent: 3658663 (1972-04-01), Fukanuma

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