Patent ID: 6586152
Filing Date: 2003-07-01
Classification: G03F,Y10S

Abstract:
A method for reducing substrate dependence of a resist composition, which comprises the steps of:incorporating into the resist composition, as an agent for reducing substrate dependence, a compound shown by the following general formula [1]: â€ƒwherein R41 is a hydrogen atom or a methyl group, R42 is a hydrogen atom, a methyl group, an ethyl group or a phenyl group, R43 is a straight chained, branched or cyclic alkyl group having 1 to 6 carbon atoms, and n is 0 or 1, wherein an amount of the compound to be used is 0.5 to 30 wt % relative to the total amount of the resist composition, applying the resist composition to a special substrate being selected from the group consisting of SiN, TiN, SiON, BPSG and a strong basic organic anti-reflective film, wherein the resist composition is one containing a) a polymer which becomes soluble in an aqueous alkaline developing solution by a chemical change by an action of an acid, b) an acid generator.