Patent ID: 6297174
Filing Date: 2001-10-02
Classification: H01L

Abstract:
A method for the formation of a planarizing coating film on a substrate surface which comprises the steps of:(a) coating the substrate surface with a coating solution consisting of an organic solvent and, as a film-forming solute uniformly dissolved in the organic solvent, a nitrogen-containing organic compound selected from the group consisting of melamine, benzoguanamine, acetoguanamine, glycoluril, urea, thiourea, guanidine, dicyandiamide, alkylene ureas and succinamide having, in a molecule, at least two amino or imino groups each substituted for the nitrogen-bonded hydrogen atom by a hydroxyalkyl group or an alkoxyalkyl group to form a coating layer;(b) drying the coating layer by evaporating the organic solvent to form a dried coating layer; and(c) subjecting the dried coating layer to a baking treatment at a temperature in the range from 150 to 250.degree. C.