Patent ID: 8828651

Claim:
A method for forming a pattern comprising the steps: coating a positive-type photosensitive resin composition on a substrate, irradiating the coated surface with UV light through a pattern mask, forming a pattern on the substrate by developing the coated surface, and post-baking for film curing to the pattern-formed surface; wherein the positive-type photosensitive resin composition comprises component (A), component (B), component (C), component (D), and component (E): component (A): an alkali-soluble resin having a functional group which undergoes a heat crosslinking reaction with a compound of component (B), a functional group for film curing which undergoes thermoset reaction with compound of component (C), and a number average molecular weight of 2,000 to 30,000; component (B): a compound having two or more vinyl ether groups per molecule, wherein the compound having two or more vinyl ether groups per molecule is a compound of formula (1) or formula (2): where n is a number of 2 to 10, k is a number of 1 to 10, and R 1 is an organic group of n-valence, where m is a number of 2 to 10; component (C): a compound having two or more blocked isocyanate groups per molecule, and a heat dissociation temperature of a blocked moiety of the compound is from 120 to 230° C.; component (D): a photoacid generator; and component (E): a solvent, wherein the blocked isocyanate groups in component (C) are derivatives of lactams, oximes, pyrazoles, or thiols, and the resin composition dissolves when exposed to light.