Patent ID: 9316910
Filing Date: 2016-04-19
CPC Classification: G03F

Claim Text:
1. A pattern forming method comprising: (1) forming a film by using an actinic-ray-sensitive or radiation-sensitive resin composition containing a resin that includes; 65 mol % or more of a repeating unit represented by the following General Formula (AI) as a repeating unit having a group which generates a polar group by being degraded by the action of an acid based on all repeating units in the resin, and at least one kind of repeating unit represented by the following General Formula (I) or (II); (2) exposing the film; and (3) developing the exposed film using a developer that contains an organic solvent: wherein in General Formula (AI), Xa T represents a single bond; and each of Rx wherein in General Formulae (I) and (II), each of R each of R each of R each of Y each of X each of m1 and m2 independently represents an integer of 0 to 4; each of n1 and n2 independently represents an integer of 0 to 4, provided that when n1 is 2 or greater, a plurality of R