Patent ID: 6444403
Filing Date: 2002-09-03
Classification: H05K

Abstract:
A method of producing a resin laminated wiring sheet comprising the steps of:coating an epoxy-acrylate photosensitive resin composition on a copper foil; etching the epoxy-acrylate photosensitive resin composition on the copper foil into a shape by exposing and developing; forming a first conductive pattern by plating a metal on the copper foil in locations where the photosensitive resin layer was etched away; coating an adhesive resin on the first conductive pattern and providing a via hole in the adhesive resin; providing a second conductive pattern on a supporting substrate, the second conductive pattern corresponding to the via hole in the adhesive resin; and attaching the substrate to the adhesive resin with the second conductive pattern in the via hole.