Patent ID: 8669042

Claim:
A resist pattern-forming method comprising: applying a resist underlayer film-forming composition to a substrate to form a resist underlayer film, the resist underlayer film-forming composition including (A) a polysiloxane; applying a radiation-sensitive resin composition to the resist underlayer film to form a resist film, the radiation-sensitive resin composition including (a1) a polymer that changes in polarity and decreases in solubility in an organic solvent due to an acid; exposing the resist film; and developing the exposed resist film using a developer that includes an organic solvent, wherein the polysiloxane (A) is a hydrolysis-condensation product of a silane compound shown by a formula (i), R A a SiX 4-a (i) wherein R A represents a hydrogen atom, a fluorine atom, an alkyl group having 1 to 5 carbon atoms, an alkenyl group, an aryl group, or a cyano group; the alkyl group represented by R A is unsubstituted, or at least one hydrogen atom of the alkyl group represented by R A is substituted with a glycidyloxy group, an oxetanyl group, an acid anhydride group, or a cyano group; the aryl group represented by R A is unsubstituted, or at least one hydrogen atom of the aryl group represented by R A is substituted with a hydroxyl group; X represents a halogen atom or —OR B , wherein R B represents a monovalent organic group; a is an integer from 0 to 3; in a case where a plurality of R A are present, each of the plurality of R A is either identical or different; and in a case where plurality of X are present, each of the plurality of X is either identical or different.