Patent ID: 8709704

Claim:
A pattern forming method, comprising: (i) a step of forming a resist film from a resist composition for organic solvent-based development, the resist composition containing (A) a resin capable of increasing the polarity of the resin (A) by an action of an acid to decrease the solubility of the resin (A) in an organic solvent-containing developer, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and (C) a solvent; (ii) an exposure step; (iii) a development step using an organic solvent-containing developer; and (iv) a washing step using a rinsing solution, wherein in the step (iv), a rinsing solution containing at least the following solvent S2 is used: Solvent S2 is a dialkyl ether having at least either an alkyl group having a carbon number of from 5 to 8 or a cycloalkyl group having a carbon number of from 5 to 8.