Patent ID: 9023247
Filing Date: 2015-05-05
Classification: C08G,C09K,G03F,Y10T

Abstract:
1. A method of performing photolithography, comprising: a step of forming an antistatic film by applying an antistatic treatment agent comprising (a) an aqueous solvent-soluble electroconductive polymer having a Brönsted acid group, (b) a diamine or polyamine aliphatic basic compound and (c) a volatile basic compound onto a resist sensitive to a charged-particle-beam, and a step of drawing patterns by radiating a charged-particle-beam onto the resist having applied thereon the antistatic treatment agent, wherein the molar ratio of diamine or polyamine aliphatic basic compound in the total mole number of all basic compounds present is within a range of 0.1 to 75 mol %, and the number of moles of the basic group contained in the diamine or polyamine aliphatic basic compound is within a range of 0.05 to 50 mol % based on the number of moles of the Brönsted acid group contained in the aqueous solvent-soluble electroconductive polymer, and wherein the diamine or polyamine aliphatic basic compound consists of one or more kinds selected from the group consisting of diaminoalkane, triaminoalkane, polyaminoalkane and polyalkylimine.