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group described below as the repeating unit which is rep› resented by the general formula (1 ). This repeating unit can improve adhesion to a substrate and affinity for a developer. The repeating unit which has an alicyclic hydrocarbon having a hydroxyl group or a cyano group is preferably a repeating unit which has an alicyclic hydrocarbon structure which is substituted with a hydroxyl group or a cyano group and preferably does not have an acid-decomposable group. In the alicyclic hydrocarbon structure which is substituted with a hydroxyl group or a cyano group, the alicyclic hydrocarbon structure is preferably an adamantyl group, a diamantyl group, or a norbomane group, more preferably an adamantyl group. 

Particularly, it is most preferred that the resin (A) contain a repeating unit having a hydroxyadamantyl group or a dihydroxyadamantyl group from the viewpoint of inhibition of diffusion of the generated acids. Examples of the alicyclic hydrocarbon structure which is substituted with a hydroxyl group or a cyano group include repeating units which are represented by the following general formulae (Alla) to (AIId). 

[Chem.16] 

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In the general formulae (Alla) to (AIId), R$_{1 }$c represents a hydrogen atom, a methyl group, a trifluoromethyl group or a hydroxymethyl group. 

R$_{2}$c to R$_{4}$c each independently represent a hydrogen atom, a hydroxyl group or a cyano group, provided that at least one of R$_{2}$c to R$_{4}$c represents a hydroxyl group or a cyano group. A structure where one or two members out of R$_{2}$c to R$_{4}$ c are hydroxyl groups with the remaining being a hydrogen atom is preferred. In the general formula (Vlla), it is more preferred that two members out of R$_{2}$c to R$_{4}$c be hydroxyl groups and the remaining be a hydrogen atom. 

Specific examples of the repeating units which have the alicyclic hydrocarbon having a hydroxyl group are given below; however, the present invention is not limited thereto. 

[Chem.17] 

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