Patent ID: 7163892

Claim:
A process for producing an integrated circuit, comprising coating a substrate provided with wiring channels of given width and given depth with a coating liquid for integrated circuit formation containing 0.05 to 30% by weight of at least one of a component for conductive fine particle formation and conductive fine particles plus a solvent to thereby form an integrated circuit on the substrate, and wherein the conductive fine particles have an average particle diameter which is 70% or less of the width of wiring channels and which is in the range of 1 to 200 nm, and directly exposing the coating liquid for integrated circuit formation to ultrasonic waves as the coating liquid is being applied to the wiring channels, whereby the ultrasonic waves heat the coating liquid to evaporate the solvent, form conductive fine particles, concentrate the coating liquid, dry and densify the conductive particles as they are applied in said wiring channels.