Patent ID: 6579657
Filing Date: 2003-06-17
Classification: G03F,H01L

Abstract:
A composite comprising a layer comprising a cross-linked fine pattern-forming material which is formed directly on a photosensitive resist pattern made of a first material, said photosensitive resist pattern made of a first material containing an acid and said fine pattern-forming material comprisinga water-soluble resin, a mixture of two or more water-soluble resins, or a copolymer composed of two or more water-soluble resins, and one or more water-soluble cross-linking agents, wherein said water soluble resin(s) are selected from the group consisting of polyvinyl acetal, polyvinylpyrrolidone, polyethyleneimine, polyethylene oxide, styrene-maleic acid copolymer, polyvinylamine, polyallylamine, oxazoline group-containing resins, water-soluble melamine resins, water-soluble urea resins, alkyd resins, sulfone amide resins, and mixtures thereof, and salts thereof, and said water soluble cross-linking agents are selected from the group consisting of a urea derivative, benzoguanamine, glycoluril, and mixtures thereof; said composite being formed by the steps of dissolving the fine pattern-forming material in a solvent or solvent mixture to form a coating solution and applying said coating solution to said photosensitive resist pattern made of a first material, and releasing said acid from said photosensitive resist pattern to form the cross-linked fine pattern-forming material, said solvent for said fine pattern-forming material comprising at least one member selected from the group consisting of water, mixtures of water and water-soluble organic solvent(s), and water-soluble organic solvent(s), said solvent or solvent mixture for said fine pattern-forming material being incapable of dissolving said photosensitive resist pattern.