Patent ID: 6514676
Filing Date: 2003-02-04
Classification: G03F

Abstract:
A method of forming a minute resist pattern, comprising forming a coating of a positive photoresist composition containing a quinone diazide group-containing photosensitizer in an amount of 3 to 15 parts by weight relative to 100 parts by weight of alkali-soluble novolak resin, imagewise exposing the photoresist coating, and developing the photoresist coating using a developer consisting essentially of 0.4% by weight or less aqueous solution of an inorganic hydroxide represented by the general formula (2):MOHâ€ƒâ€ƒ(2) wherein M represents an alkali metal and furthermore where the alkali-soluble novolak resin consists essentially of the reaction of at least one aldehyde with compounds selected from a group consisting of monohydroxybenzene, substituted monohydroxybenzenes, naphthols and mixture thereof.