Effect of injection parameters on immersion liquid during wafer scanning
Double patterning improves the development of immersion lithography,but it brings new challenges including the higher scanning velocity of wafer.In this paper,considering two typical injection types,the three-dimensional computational fluid dynamics model is developed to investigate the effect of injection parameters on immersion liquid during wafer scanning.By analyzing the velocity distribution of immersion flow and normal stress on the lens,the proper parameters of injection are proposed under the typical conditions,and the appropriate parameters which lead to effective renovation with low lens distortion are also given.
Immersion lithography Wafer Scanning Liquid Renovation Injection Parameters
Hui Chen Qi Liu
School of Mechanical Engineering and Automation,Fuzhou University,350108,China The State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,310027,China
国际会议
广州
英文
351-355
2012-11-16(万方平台首次上网日期,不代表论文的发表时间)