Patent ID: 8822140

Claim:
A resist pattern-forming method comprising: applying a radiation-sensitive resin composition on a substrate to form a resist film, the radiation-sensitive resin composition comprising an acid-labile group-containing polymer and a photoacid generator; exposing the resist film; and developing the resist film using a developer comprising an organic solvent in an amount of no less than 80% by mass to a total amount of the developer, the radiation-sensitive resin composition having a contrast value γ of from 5.0 to 30.0, the contrast value γ being calculated from a resist dissolution contrast curve obtained by changing only a dose of a light used for exposing the resist film, the acid-labile group-containing polymer comprising: a structural unit that includes a polycyclic lactone-containing group or a polycyclic carbonate-containing group; and at least one structural unit derived from compounds each shown by formulae: wherein, R 3 represents a hydrogen atom, a fluorine atom, a methyl group, or a trifluoromethyl group.