Patent ID: 6066438
Filing Date: 2000-05-23
Classification: B01J,G03F

Abstract:
A method for fixing at least one functional material on a substrate, comprising the steps of:(i) forming a photosensitive layer comprising DNQ and novolak on the substrate;(ii) applying onto the photosensitive layer a functional material containing at least one amino group;(iii) irradiating in a pattern said photosensitive layer with light of appropriate wavelength(s) to convert DNQ to a ketene compound, wherein the photosensitive layer is photo-reacted where irradiated;(iv) reacting said at least one amino group with said ketene compound to fix via amido bonding said functional material to said substrate via said photo-reacted layer along said pattern; and(v) optionally repeating steps (ii) through (iv).