Patent ID: 7485413

Claim:
A method for forming a pattern, comprising: forming a photosensitive layer comprising a photosensitive composition on a substrate; selectively irradiating the photosensitive layer with at least one of an ultraviolet ray and an ionizing radiation; subjecting the substrate to a heat treatment; and developing the photosensitive layer to remove selectively an irradiated area of the photosensitive layer after the heat treatment; wherein photosensitive composition comprises: a polymer material comprising a group having a structure represented by following general formula (1); wherein n represents an integer of 1 or more a polymer material comprising an alkali soluble resin having hydroxyl groups protected with a group represented by the general formula (2) in an amount of 4% or more; and a photo acid generator generating an acid with at least one of an ultraviolet ray and an ionizing radiation.