The importance of the photoacid generator is increasing recently ,as this kind of compound possesses a stable thermoproperty and will produce an acid molecule when irradiated under W or visible light. The acid molecule will change the functionality of the surrounding materials and result in the polymerization and crosslinking of the materials as well as the degradation of the resin. Moreover. as the photoacidgenerator is an importantcomponentof the photoresistgreatly used in the Ie industry. the research and developmentin this area is muchmore and more valued