US 2012/0003590 Al  60  Jan. 5, 2012  [0317]  The composition of the present invention may fur› ther contain a photo-acid generator, a basic compound, a  surfactant, a solvent, a dye, a photo-base generator, an anti› oxidant, a solvent and the like. These components are  described below.  [0318]  The composition of the present invention may fur› ther contain a photo-acid generator in addition to the repeat› ing unit (A) and the repeating unit (B).  [0319]  The photo-acid generator is a compound capable of  generating an acid upon irradiation with an actinic ray or  radiation. The photo-acid generator which can be used may  be appropriately selected, for example, from a photo-initiator  for cationic photopolymerization, a photo-initiator for radical  photopolymerization, a photo-decoloring agent, a photo-dis› coloring agent, known compounds capable of generating an  acid upon irradiation with an actinic ray or radiation, which  are used for microresist or the like, and a mixture thereof.  Examples thereof include an onium salt such as sulfonium  salt and iodonium salt, and a diazodisulfone compound such  as bis(alkylsulfonyl diazomethane).  [0320]  Preferred examples of the photo-acid generator  include compounds represented by the following formulae  (ZI), (ZII)  and  (ZIII):  <Other Components>  (Photo-Acid Generator)  -continued  --+CH2-CH-t- ~  I  o  I  ✓ ,:::;  I  O=S=O  $^{+ }$Y SVOMe  F F  -...::  0  -...::  o-leol""  I""  I  OMe  O=S=O  F+F  F  OH  -CH9  0  I  O=S=O  F+F  F---t-F  S03  e  P-54  OH  P-55  -continued  -CH9  0  I  O=S=O  F*F  F  S03  e 