Patent ID: 7661190
Filing Date: 2010-02-16
Classification: H05K,Y10T

Abstract:
1. A process for producing a multilayer printed wiring board, comprising the steps of: causing the surface of a resin layer, which is uncured or partly-cured and made of a curable composition comprising an insulation polymer and a curing agent, to come in contact with i) a liquid heterocyclic compound containing a nitrogen atom, an oxygen atom, or a sulfur atom, in the ring thereof and having an amino group, thiol group, carboxyl group or cyano group or ii) a solution of a heterocyclic compound containing a nitrogen atom, an oxygen atom, or a sulfur atom, in the ring thereof and having an amino group, thiol group, carboxyl group or cyano group as a main component; the resin layer being formed on an internal layer substrate comprising a formed body of an electrical insulation material and a first conductive layer as the outermost layer, which is formed on the formed body; subsequently, curing the resin layer to form an electrical insulation layer wherein the surface of the obtained electrical insulation layer is the same as the surface of the resin layer; oxidizing the surface of the obtained electrical insulation layer until and thereafter forming a second conductive layer on the electrical insulation layer using a plating method.