US 9,513,547 B2  26  25  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.  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.  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.17]  [Chem.16]  coo--fi  _y:f-R3c  R$_{2}$ c  (Allb)  (Alie)  ~_{\’,  ~CN  (Alld)  OH  OH  OH  :(  OH  OH  OH  OH  ~H  0  0  ~o-Q:lCN  OH  OH  ~-Q:lCN ~~Q:lCN 