Chemistry: electrical and wave energy – Processes and products
Patent
1988-02-08
1991-04-16
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
204 20, 204 30, 204 384, 430315, C25D 554
Patent
active
050079905
ABSTRACT:
A method for metal plating the surface of an article formed from an organic plastic. The method includes a step of passing a current between two electrodes immersed in an electrolyte containing dissolved plating metal. One of the electrodes is the article to be plated and is provided with a surface having areas of a catalytic metal chalcogenide conversion coating adjacent to and in contact with conductive areas. The metal sulfide is of a metal that would be catalytic to electroless metal deposition. The method is especially useful for the formation of printed circuit boards and is sufficiently versatile to permit formation of a printed circuit board by a process that involves pattern plating.
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Goldberg Robert L.
Leader William T.
Niebling John F.
Shipley Company Inc.
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