Patent ID: 6358804
Filing Date: 2002-03-19
Classification: H01L

Abstract:
A method for forming electrically insulating thin films wherein the method comprises coating the surface of a substrate with a composition comprising(A) a resin selected from the group consisting of electrically insulating, heat-curing organic resins and electrically insulating, heat-curing inorganic resins; and (B) a solvent capable of dissolving resin (A) and (C) a solvent selected from the group consisting of a solvent whose boiling point differs from solvent (B), a solvent whose vapor pressure curve differs from that of solvent (B) and a solvent whose affinity for resin (A) differs from that of solvent (B) and wherein the solvent (C) is selected from the group consisting of hydrocarbon solvents; ketone solvents; aldehyde solvents; ester solvents; diethyl sulfate; sulfolane; halohydrocarbon solvents; etherified hydrocarbon solvents; alcohol solvents; ether solvents; acetal solvents; polyhydric alcohol solvents; carboxylic anhydride solvents; and phenolic solvents; evaporating at least a portion of the solvents (B) and (C); and subsequently exposing the substrate to high energy radiation and inducing evaporation of the remaining solvents during the course of or after the cure of resin (A).