发明名称 Exposure mask blank manufacturing method and exposure mask manufacturing method
摘要 A method of manufacturing an exposure mask blank including a substrate and a light-shielding film formed on the substrate, comprising measuring a first flatness of each of a plurality of substrates before formation of a light-shielding film, predicting, on the basis of the first flatness, a second flatness of each substrate when chucked on an exposure apparatus, selecting from the plurality of substrates, at least one substrate having a predetermined flatness on the basis of the second flatness, predicting a desired third flatness of the at least one substrate after a light-shielding film is formed on the substrate, forming a light-shielding film on the selected at least one substrate, measuring a fourth flatness of the at least one substrate having the formed light-shielding film, and determining whether the at least one substrate having the light-shielding film has the desired third flatness by comparing the fourth flatness with the third flatness.
申请公布号 US7384713(B2) 申请公布日期 2008.06.10
申请号 US20040853532 申请日期 2004.05.26
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 ITOH MASAMITSU
分类号 G03F1/00;G03F1/08;G03C5/00;G03F1/14;G03F1/76;G03F7/20;G03F9/00;H01L21/02;H01L21/027 主分类号 G03F1/00
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