Patent Document ID: 4133908
Application ID: 05848001
Patent Status: 1

Claim One:
1. A method for selectively depositing a metal on a surface of a substrate, which comprises: (a) coating the surface with a sensitizing solution comprising at least a reducible salt of a non-noble metal and a radiation-sensitive reducing agent for said reducible salt to form a sensitized surface; (b) exposing said sensitized surface to a source of light radiant energy to reduce said metal salt to a reduced metal salt species, wherein at least one of said above steps (a) or (b) is restricted to a selected pattern on the surface to form a catalytic real image capable of catalyzing the deposition of a metal thereon from an electroless metal deposition solution; and (c) treating said catalytic real image, prior to exposing said real image to an electroless metal deposition solution, with a stabilizer comprising at least (a) a reducing agent for the non-noble metal ions of said reducible salt, (b) a complexing agent and (c) an accelerator comprising a compound containing a cyanide radical (CN.sup.-) complexed with a metal selected from Group VIII of the Periodic Table of the Elements, to at least stabilize said catalytic real image.