发明名称 Charged particle beam transfer method
摘要 This invention provides the charged particle beam transfer method, which can control adverse effect of distortion or blur that arises from the space charge effect due to the non-uniform pattern density to a minimum. A pattern formed on reticle is raster or step-and-repeat scanned with a charged particle beam and is illuminated in consecutive order, and a pattern image of a sub-field, which is illuminated, is to be formed on a certain position of a radiation sensitive substrate. On the radiation sensitive substrate whole pattern is projected through stitching the said pattern image. The pattern is to be divided into plural areas A and B which differ in pattern density one another, and the above-described scan boundary is made to coincide with the boundary of these plural areas.
申请公布号 US6140021(A) 申请公布日期 2000.10.31
申请号 US19990307204 申请日期 1999.05.07
申请人 NAKASUJI, MAMORU 发明人 NAKASUJI, MAMORU;KAWATA, SHINTARO
分类号 G03F7/20;H01J37/317;H01L21/027;(IPC1-7):G03C5/00 主分类号 G03F7/20
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