Copper solution null for photochemical circuit formation manner and photochemical circuit formation

摘要

PROBLEM TO BE SOLVED: To directly form a wiring circuit on a substrate by continuously reductively depositing a metal (copper, etc.) by the irradiation with active energy rays.;SOLUTION: A method for forming a photochemical circuit with a reduction assistant that is carboxylic acid comprises: a step (a) of modifying an insulating substrate; a step (b) of depositing a mixed solution of metal ions with a reduction assistant on the insulating substrate; and a step (c) of forming a fine pattern of a metal by reductively depositing the metal ions onto the metal by the action of the reduction assistant accompanied with the irradiation with active energy rays. The carboxylic acid is decomposed by the irradiation with the active energy rays, and the metal ions are reduced by electrons emitted in that case to form a metal wiring circuit. Thus, there is no need for using a TiO₂ photocatalyst as conventionally.;COPYRIGHT: (C)2007,JPO&INPIT