Patent ID: 7504199

Claim:
A method for forming a metal pattern, comprising the steps of: (i) coating a photocatalytic compound onto a substrate to form a photocatalytic film layer wherein the photocatalytic compound is a Ti-containing organometallic compound which is capable of being converted to transparent amorphous TiO 2 by annealing; (ii) heating the coated substrate at a temperature not higher than 200° C. under conditions wherein the Ti-containing organometallic compound present on the substrate is converted to a transparent photocatalytic film layer of amorphous TiO 2 ; (iii) coating a water soluble polymeric compound onto the photocatalytic film layer of transparent amorphous TiO 2 to form a water-soluble polymer layer thereon; (iv) selectively exposing the two layers to light to form latent image centers for crystal growth; and (v) plating the resulting latent pattern with a metal to grow metal crystals thereon.