发明名称 Multiple exposure method
摘要 Disclosed is an exposure method in which a multiple exposure process including a first exposure for a first pattern and a second exposure for a second pattern is performed by use of a projection optical system to thereby resolve a desired pattern, wherein a numerical aperture NA1 of the projection optical system for the first pattern exposure and a numerical aperture NA2 of the projection optical system for the second pattern exposure are made different from each other.
申请公布号 US2001036604(A1) 申请公布日期 2001.11.01
申请号 US20010796541 申请日期 2001.03.02
申请人 KAWASHIMA MIYOKO 发明人 KAWASHIMA MIYOKO
分类号 G03F7/22;G03F7/20;H01L21/027;(IPC1-7):G03F7/20 主分类号 G03F7/22
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