发明名称 REFLECTIVE MASK AND METHOD OF MANUFACTURING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a reflective mask for EUV exposure, which has a light shielding band superior in cleaning resistance, by improving light shielding performance at an overlapping portion of fields of a transfer pattern in EUV exposure to suppress leakage of exposure light, resulting in reduced effect of shadowing of exposure light, and to provide a method of manufacturing the same. <P>SOLUTION: The formation region of a transfer pattern on an object is defined. In order to prevent EUV light from radiated to other than the formation region of transfer pattern, a light shielding band 18 having a predetermined width is provided around a transfer pattern 21. The light shielding band 18 consists of a layer in which a multilayer reflecting film 12 is irradiated with laser beam to destruct the multilayer reflecting film. The light shielding band is on the same plane as the multilayer reflecting film 12 on a substrate 11. The reflectivity of the EUV light on the light shielding band 18 is lower than that on the multilayer reflecting film 12. <P>COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011044520(A) 申请公布日期 2011.03.03
申请号 JP20090190680 申请日期 2009.08.20
申请人 DAINIPPON PRINTING CO LTD 发明人 INAZUKI YUICHI;ABE TSUKASA;TAKIGAWA TADAHIKO
分类号 H01L21/027;G03F1/22;G03F1/24 主分类号 H01L21/027
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