Patent ID: 9201303
Filing Date: 2015-12-01
Classification: G03F,Y10S

Abstract:
1. A photoresist composition comprising: a resin which shows an increase in solubility in an aqueous alkali solution by an action of an acid; an acid generator; a plasticizer selected from the group consisting of ethylphthalylethylglycolate, tris(2-ethylhexyl) trimellitate and N-butylbenzene sulfonamide; and a solvent the amount of which is from 40 to 75% by mass of the total amount of the photoresist composition, said resin being a resin obtained by reacting a novolak resin, a compound having two or more vinyloxy groups and a resin comprising a structural unit represented by formula (a1-2), a structural unit represented by formula (a2-1), or both of the structural units: wherein R R R R R