At present extensive use clean method is ultraviolet (UV) light clean,on one hand it can avoid pollution because of use organic solvent , meanwhile can abbreviate clean process .

• 目前国外广泛使用的清洗方法是紫外(UV)光清洗，它一方面能避免由于使用有机溶剂造成的污染，同时能够将清洗过程缩短。