50nm分辨力极端紫外光刻物镜光学性能研究

被引:14
作者
李艳秋
机构
[1] 中国科学院电工研究所北京
关键词
应用光学; 光学设计; 极端紫外光刻; 下一代光刻;
D O I
暂无
中图分类号
TN305.7 [光刻、掩膜];
学科分类号
1401 ;
摘要
极端紫外光刻 (EUVL)作为实现 10 0~ 32nm特征尺寸微细加工的优选技术 ,其光刻物镜的光学性能是实现高分辨图形制作的关键。利用光学设计软件CODEV对 6枚非球面反射镜构成的光刻物镜设计和光学性能分析 ,其分辨力可以实现 5 0nm ,曝光面积为 2 6mm× 1mm。结果表明 ,光学性能对曝光场点的依赖关系。在全曝光场中进行了光学性能分析 ,其最大畸变为 3.77nm ,最大波面差为 0 .0 31λ(均方根值 ) ,该缩小投影物镜完全可以满足下一代极端紫外光刻机的性能要求
引用
收藏
页码:865 / 868
页数:4
相关论文
共 7 条
[1]  
Current status of extreme ultraviolet lithography in Japan. Ota K,Nishiyama I,Ogawa T et al. Optics and Precision Engineering . 2001
[2]  
Devlopment of the large field extrem ultraviolet lithography camera. Watanabe T,Kinoshita H,Nii H et al. Journal of Vacuum Science Technology B Microelectronics and Nanometer Structures . 2000
[3]  
Lithography aerialimage contrast measurement in the extreme ultraviolet engineering test stand. Lee S H,Tichenor D A,Naulleau P. Journal of Vacuum Science and Technology . 2002
[4]  
Soft X-ray reduction lithography using multilayer mirrors. Kinoshita H,Kurihara K,Ishii Y et al. Journal of Vacuum Science and Technology . 1989
[5]  
Development of an experimental EUVL system. Jin Chunshui,Ma Yueying,Pei Shu et al. Optics and Precision Engineering . 2001
[6]  
Thermal and structuraldeformation and its impact on optical performance of projection optics for EUVL. Li Yanqiu,Ota K,Murakami K. Journal of Vacuum Science and Technology . 2003
[7]  
An illumination system design for three aspherical mirror projection camera of extreme ultraviolet lithography. Li Yanqiu,Kinoshita H,Watanabe T et al. Applied Optics . 2000