Patent ID: 8460851

Claim:
A salt represented by the formula (I): wherein Q 1 and Q 2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, L 1 represents *—CO—O-L a - or *—CH 2 —O-L b -, * represents a binding position to —C(Q 1 )(Q 2 )-, L a and L b independently represent a C1-C15 divalent saturated hydrocarbon group in which one or more —CH 2 — can be replaced by —O— or —CO—, ring W 1 represents a C2-C36 nitrogen-containing heterocyclic group in which one or more —CH 2 — can be replaced by —O—, and Z 1⊕ represents an organic counter ion.