发明名称 METHOD FOR REPAIRING A DEFECT ON A PHOTOMASK
摘要 A method for repairing a defect on a photomask includes coating a resist on a photomask substrate. The photomask substrate includes phase shift layer patterns formed on the photomask substrate, light blocking layer patterns formed over the phase shift layer patterns and a defect formed between adjacent phase shift layer patterns. The resist is etched to expose the defect such that the photomask substrate is not exposed. The defect is etched to remove the defect. The resist prevents the photomask substrate from being etched. The resist is then removed.
申请公布号 US2008193861(A1) 申请公布日期 2008.08.14
申请号 US20070966442 申请日期 2007.12.28
申请人 HYNIX SEMICONDUCTOR INC. 发明人 JEONG KU CHEOL
分类号 G03F1/00 主分类号 G03F1/00
代理机构 代理人
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