发明名称 Exposure method and apparatus, and device producing method using two light beams to correct non-rotationally symmetric aberration
摘要 An exposure method which includes illuminating a first object formed with a pattern to be transferred with a first light beam to expose a second object with the first light beam through the first object and a projection optical system; and irradiating the first object and at least one portion of the projection optical system with a second light beam having a wavelength range that is different from that of the first light beam to correct image forming characteristics of the projection optical system.
申请公布号 US7817249(B2) 申请公布日期 2010.10.19
申请号 US20060362817 申请日期 2006.02.28
申请人 NIKON CORPORATION 发明人 UEHARA YUSAKU
分类号 G03B27/54;G02B7/02;G03F7/20;H01L21/027 主分类号 G03B27/54
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