Electroplating process

Details Electroplating process Electroplating process

1994-04-11

1995-06-20

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Coating selected area

427 96, C25D 502

Patent

active

054258731

ABSTRACT:
A process for electroplating a substrate having a surface comprising metallic and non-metallic regions. The process is characterized by selectively forming a protective film over the metallic regions of the substrate surface and forming a sulfide coating selectively over the remaining portions of said substrate. The protective film enables selective sulfide formation only on metallic sites without formation of a sulfide coating on metallic surface regions of the substrate which would otherwise interfere with metal-to-metal bond during electroplating. Following formation of the sulfide conversion coating, the protective film is removed and the surface of the substrate electroplated.

REFERENCES:
patent: 3011290 (1961-12-01), Shipley, Jr.
patent: 4895739 (1990-01-01), Bladon
patent: 4919768 (1990-04-01), Bladon
patent: 4952286 (1990-08-01), Bladon et al.
patent: 5007990 (1991-04-01), Bladon
patent: 5276290 (1994-01-01), Bladon

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