发明名称 Exposure method
摘要 An exposure method for exposing a workpiece in a proximity exposure system, includes a first exposure step for printing, by exposure, an image of a first mask pattern on a predetermined portion of the workpiece, and a second exposure step for printing, by exposure, an image of a second mask pattern, different from the first mask pattern, on the predetermined portion of the workpiece, wherein exposures in the first and second exposure steps are performed superposedly, prior to a development process.
申请公布号 US6327332(B1) 申请公布日期 2001.12.04
申请号 US19990425223 申请日期 1999.10.22
申请人 CANON KABUSHIKI KAISHA 发明人 AMEMIYA MITSUAKI;UZAWA SHUNICHI
分类号 H01L21/027;B81C1/00;G03F7/00;G03F7/20;(IPC1-7):H01L21/30 主分类号 H01L21/027
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