COPPER PARTICLE DISPERSION AND METHOD FOR PRODUCING CONDUCTIVE FILM USING SAME

摘要

A copper particle dispersion of fine copper particles having an average size of 1-100 nm, the copper particles being coated by an azole compound such as benzotriazole or the like, and coarse copper particles having an average size of 0.3-20 μm dispersed a dispersion medium such as ethylene glycol or the like so that the total amount of fine copper particles and coarse copper particles is 50-90 mass% and the mass ratio is 1:9-5:5 is applied to a substrate by screen printing or flexo printing, prebaked by vacuum drying, then baked by application of light by applying light of a wavelength of 200-800 nm at a pulse period of 100-3000 μs and a pulse voltage of 1600-3600 V.