Patent ID: 8088557

Claim:
A method of forming patterns, comprising: coating with a resist composition for negative development to form a resist film, wherein the resist composition for negative development contains a resin capable of increasing its polarity by the action of an acid and becomes more soluble in a positive developer which is an alkali developer and becomes less soluble in a negative developer containing an organic solvent upon irradiation with an actinic ray or radiation, exposing the resist film via an immersion medium, and performing development with the negative developer, wherein the resist composition for negative development comprises: (A) the resin capable of increasing the polarity by the action of an acid, which becomes more soluble in the positive developer and less soluble in the negative developer upon irradiation with an actinic ray or radiation, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, (C) a solvent, and (D) a resin having at least either a fluorine atom or a silicon atom, wherein the amount of the component (D) is 0.1 mass % or more, based on the total solids in the resist composition.