发明名称 Defect correction method for EUV mask
摘要 According to an aspect of the present invention, there is provided a method for correcting a defect in an EUV mask, the method including: preparing an EUV mask including an absorption layer and an anti-reflection layer forming a pattern; recognizing a defect region in the pattern; defining a first region and a second region on the defect region, the second region extending from a desired pattern edge by a given distance, the first region being defined on the rest; removing the first region of the anti-reflection layer and the absorption layer by irradiating a beam in a first atmosphere; removing the second region of the anti-reflection layer and the absorption layer by irradiating the beam in a second atmosphere; and oxidizing an exposed side surface of the desired pattern edge of the absorption layer.
申请公布号 US7927770(B2) 申请公布日期 2011.04.19
申请号 US20090556779 申请日期 2009.09.10
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 KANAMITSU SHINGO
分类号 G03F1/22;G03F1/24;G03F1/72;G03F1/74;H01L21/027 主分类号 G03F1/22
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