124  US 8,852,845 B2  123  -continued  The resin (P) may or may not contain a repeating unit  having a polar group-free cyclic hydrocarbon structure and  not exhibiting acid decomposability, but in the case of con› taining this repeating unit, the content thereof is preferably  from 10 to 40 mo! %; more preferably from 3 to 20 mo! %,  based on all repeating units in the resin (A).  As for the resin (P) of the present invention, one kind may  be used alone, or two or more kinds may be used in combi- nation. The content of the resin (P) is preferably from 30 to  100 mass  %, more preferably from 50 to 100 mass %, still  more preferably from 70 to 100 mass %, based on the entire  solid content in the actinic ray-sensitive or radiation-sensitive  resin composition of the present invention.  Specific examples of the resin (P) include, but are not  limited to, the followings.  Specific examples of the resin (P) include a resin contain› ing one or more kinds of repeating units selected from specific  examples of formulae (III) to (IV)/one or more kinds of  repeating units selected from specific examples of formula  (VI), a resin containing one or more kinds of repeating units  selected from specific examples of formulae (III) to (IV)/one  Ra  ~  ~  Ra  ~  ~  Cl  Ra  ~  Ra  ~  -continued  Ra  Ra  ~o~  CY  1G  Ra  Ra  ~  ~  Ra  Ra  ~  ~  5  Ra  Ra  ,:to  ~  Ra  $^{~ }$6  Ra  ~ 