Patent ID: 7329478
Filing Date: 2008-02-12
Classification: G03F,Y10S

Abstract:
1. A chemical amplification type positive photoresist composition comprising: (A) an alkali soluble resin consisting of 70 to 99 mol % of a constituent unit (a1) represented by the following general formula (I): wherein R represents a hydrogen atom or a methyl group, and 1 to 30 mol % of a constituent unit (a2) represented by the following general formula (II): wherein R represents a hydrogen atom or a methyl group, R 1 represents an alkyl group having 1 to 5 carbon atoms and n represents an integer of 0 or 1 to 3, the total of said constituent units (a1) and (a2) being 100 mol %; (B) a compound represented by the following general formula (III): wherein R 2 represents either an alkylene group having 1 to 10 carbon atoms which may have a substituent, or a group represented by the following general formula (IV): (wherein R 3 represents an alkylene group having 1 to 10 carbon atoms which may have a substituent, and m represents 0 or 1), and the alkylene group may have an oxygen bond (ether bond) in the main chain; and (C) a compound generating an acid component under irradiation with radiation; and an organic solvent.