Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1976-08-16
1978-04-11
Kendall, Ralph S.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
96 362, 106 111, 427 53, 427 54, 427304, 427305, 427306, C23C 302
Patent
active
040840239
ABSTRACT:
A method for depositing a metal on a surface is disclosed. The method comprises coating the surface with a sensitizing solution comprising at least a reducible salt of a non-noble metal to form a coated surface. The coated surface is exposed to a source of light radiation to form a catalytic layer capable of directly catalyzing the deposition of a metal thereon from an electroless metal deposition solution. The catalytic layer is treated with a fixing solution comprising an autocatalytic reducing agent for the non-noble metal ions of said reducible salt to at least stabilize the catalytic layer.
REFERENCES:
patent: 3011920 (1961-12-01), Shipley, Jr.
patent: 3488166 (1970-01-01), Kovac
patent: 3597266 (1971-08-01), Leibowitz
patent: 3745039 (1973-07-01), Feldstein
patent: 3772056 (1973-11-01), Polichette
patent: 3772078 (1973-11-01), Polichette
patent: 3859092 (1975-01-01), Gyrling
patent: 3904783 (1975-09-01), Nara
patent: 3907621 (1975-09-01), Polichette
patent: 3925578 (1975-12-01), Polichette
patent: 3930963 (1976-01-01), Polichette
Kendall Ralph S.
Rosenstock J.
Smith John D.
Western Electric Company Inc.
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