Patent ID: 6693049
Filing Date: 2004-02-17
Classification: G03F,H01L

Abstract:
A method for filling a fine hole, having a hole pattern diameter of less than or equal to 0.18 &mgr;m, comprising the following steps of:(i) filling said fine hole with filler which is obtained by dissolving into an organic solvent a nitrogen-containing compound having a mean molecular weight of less than or equal to 800 and containing at least one compound selected from melamine, benzoguanamine, acetoguanamine, glycol-uril, urea, thiourea, guanidine, alkylene urea and succinylamide, in which hydrogen atoms of amino groups are substituted by at least one hydroxyalkyl group or an alkoxyalkyl group or both hydroxyalkyl and alkoxyalkyl groups; (ii) drying said filler; and (iii) heating said filler at a temperature of 150-250Â° C.