Patent ID: 6802985
Filing Date: 2004-10-12
Classification: C23C,C25D,H05K

Abstract:
A method for fabricating metal wirings, comprising the steps of:forming a ground resin film by applying a resin onto an insulating substrate; patterning the ground resin film; and forming a low-resistance metal film selectively over the patterned ground resin film by a wet film formation technique wherein the patterned ground resin film is enclosed by the low-resistance metal film and the insulating substrate, wherein the low-resistance metal film is a single layer film containing any one of Cu, Ni, Sn, Au, Ag, Cr, or Pd or the low-resistance metal film is a multilayer film containing at least one single layer film containing Cu, Ni, or Au, thereby forming said metal wiring without using any etching technique.