METHOD OF FORMING CONDUCTIVE TRACKS

摘要

A patterned electrical conductor having improved resolution and conductivity is obtained by forming a latent image by exposing, to pressure or sensitising radiation according to a desired conductive track pattern, a pressure-sensitive or photosensitive element having a support substrate and a pressure-sensitive or photosensitive material coated thereon, being capable of providing a latent image upon exposure and comprising a pressure-sensitive or photosensitive metal salt dispersed in a binder, which binder is susceptible to decomposition and/or dissolution upon treatment with an enzyme solution, developing the latent image to form a developed image formed by a first metal (e.g. silver) corresponding to the desired conductive track pattern, treating the developed image with an enzyme capable of decomposing or dissolving the binder and electroless plating and/or electroplating the developed metal image with a plating of a second metal (e.g. silver) to improve the conductivity of the developed metal image to form a conductive track according to the desired pattern, wherein the step of treating the developed image with the enzyme is prior to and/or during the plating step(s).