The positive working light-sensitive composition of claim 1, wherein the disulfone compound is selected from the group consisting of those represented by the formula (I) wherein the alkyl group is a linear, branched or cyclic group having 1 to 10 carbon atoms or a linear, branched or cyclic group having 1 to 10 carbon atoms substituted by a halogen atom, an alkoxy group having 1 to 6 carbon atoms