Process for producing product having patterned metal layer

Details Process for producing product having patterned metal layer Process for producing product having patterned metal layer

1985-10-30

1987-05-19

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 541, 427 98, 430417, B05D 306

Patent

active

046667350

ABSTRACT:
A multilayered composite product useful as an electrical circuit is produced by coating a base with a photoimagable resin free of catalyst or catalyst activator for electroless metal deposition. The resin is patterned by exposure to a desired light, through a mask followed by development. The patterned cured resin is selectively chemically modified while avoiding chemical modification of the base to render the cured resin receptive to a metal catalyst. The metal catalyst which promotes subsequent electroless metal deposition is selectively absorbed on the patterned cured resin and is converted to a catalytically active form. A conductive metal then is deposited selectively on the catalyst-containing patterned cured resin.

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