发明名称 Exposure method
摘要 An exposure method for transferring a pattern of a mask onto a workpiece in a proximity exposure system, includes a first exposure step for exposing a predetermined portion of the workpiece, while maintaining a first spacing between the mask and the workpiece, and a second exposure step for exposing the predetermined portion of the workpiece, while maintaining a second spacing, different from the first spacing, between the mask and the workpiece, wherein exposures in the first and second exposure steps are performed superposedly, prior to a development process. <IMAGE>
申请公布号 EP0997780(A1) 申请公布日期 2000.05.03
申请号 EP19990308451 申请日期 1999.10.26
申请人 CANON KABUSHIKI KAISHA 发明人 AMEMIYA, MITSUAKI;UZAWA, SHUNICHI;WATANABE, YUTAKA
分类号 H01L21/027;B81C1/00;G03F7/20 主分类号 H01L21/027
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