Patent ID: 8852845
Filing Date: 2014-10-07
Classification: G03F,Y10S

Abstract:
1. An actinic ray-sensitive or radiation-sensitive resin composition comprising: (P) a resin containing (A) a repeating unit having an ionic structure moiety that contains a cation represented by formula (Ia) and is capable of producing an acid upon irradiation with an actinic ray or radiation: wherein each of R Z represents a single bond or a divalent linking group, provided that an anionic moiety of the ionic structure moiety is bonded to a main chain of the resin (P) via a covalent bond, and the cationic moiety represented by formula (Ia) is free as a counter cation; wherein the repeating unit (A) is a repeating unit represented by any one of the following formulae (III) to (V): wherein each of R R each of X X R each of R A represents a group of the following formula (ZI) which is an ionic structure moiety capable of decomposing upon irradiation with an actinic ray or radiation: wherein in formula (ZI), R Z represents an acid anion generated as a result of decomposition upon irradiation with an actinic ray or radiation; and the straight line extending from Z wherein the resin (P) further contains (B) a repeating unit containing a group capable of decomposing by the action of an acid to produce an alkali-soluble group; wherein the repeating unit (B) is a repeating unit represented by the following formula (I) or (X): wherein each of R Ar each of n Ys independently represents a hydrogen atom or a group capable of leaving by the action of an acid, provided that at least one Y represents a group capable of leaving by the action of and acid, and n represents an integer of 1 to 4; wherein Xa T represents a single bond or a divalent linking group, each of Rx