Patent ID: 8507189

Claim:
A method of forming a photoresist pattern comprising: a step of forming a photoresist film by applying a photoresist to a substrate; a step of forming an upper layer film on the photoresist film; and a step of forming a resist pattern by irradiating the photoresist film and the upper layer film with radiation via water through a mask having a specific pattern, and developing the resist pattern, wherein the step of forming an upper layer film is carried out using an supper layer film forming composition comprising: (A) a resin dissolvable in a developer for the photoresist film; and (B) a compound shown by the following formula (2), wherein R 6 individually represents a linear or branched alkyl group having 1 to 10 carbon atoms, an alicyclic alkyl group having 3 to 10 carbon atoms or a derivative thereof, a hydroxyl group, a carboxyl group, an alkyl ether group, an alkyloxycarbonyl group, or an alkylcarbonyloxy group; Z represents a linear, branched or alicyclic hydrocarbon having 4 to 12 carbon atoms or a substituted or unsubstituted aromatic hydrocarbon; m is 0 to 4; and n is 1 to 4, wherein the resin (A) has at least one repeating unit selected from repeating units shown by the following formulas (I-1), (I-2), and (I-3), wherein R 1 represents a hydrogen atom, a methyl group, or a trifluoromethyl group, R 2 , R 3 , and R 4 represent a single bond or a divalent organic group, R 5 represents a linear or branched alkyl group having 1 to 10 carbon atoms in which at least one hydrogen atom is substituted by a fluorine atom or an alicyclic alkyl group having 3 to 10 carbon atoms, and R 1x represents a linear or branched alkyl group having 1 to 3 carbon atoms in which at least one hydrogen atom is substituted by a fluorine atom, wherein an amount of the compound (B) is 3 parts by mass or less for 100 parts by mass of the resin (A).