Patent ID: 6753132
Filing Date: 2004-06-22
Classification: G03F,Y10S

Abstract:
A pattern formation method comprising the steps of:forming a resist film by applying, on a substrate, a pattern formation material containing a polymer including a first unit represented by Chemical Formula 1 and a second unit represented by Chemical Formula 2, and an acid generator: Chemical Formula 1: Chemical Formula 2: wherein R1 and R2 are the same or different and selected from the group consisting of an alkyl group, a chlorine atom and an alkyl group including a fluorine atom; R3 is a protecting group released by an acid; and m is an integer of 0 through 5; irradiating said resist film with exposing light of a wavelength shorter than a 180 nm band for pattern exposure; and forming a resist pattern by developing said resist film after the pattern exposure.