发明授权
US09091947B2 Extreme ultraviolet light (EUV) photomasks and fabrication methods thereof
有权
极紫外光(EUV)光掩模及其制造方法
- 专利标题: Extreme ultraviolet light (EUV) photomasks and fabrication methods thereof
- 专利标题(中): 极紫外光(EUV)光掩模及其制造方法
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申请号: US13946741申请日: 2013-07-19
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公开(公告)号: US09091947B2公开(公告)日: 2015-07-28
- 发明人: Yen-Cheng Lu , Chih-Tsung Shih , Shinn-Sheng Yu , Jeng-Horng Chen , Anthony Yen
- 申请人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 申请人地址: TW Hsin-Chu
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TW Hsin-Chu
- 代理机构: Slater & Matsil, L.L.P.
- 主分类号: G03F1/24
- IPC分类号: G03F1/24 ; G03F1/22 ; G03F1/54 ; G03F1/80
摘要:
Embodiments of EUV photomasks and methods for forming a EUV photomask are provided. The method comprises providing a substrate, a reflective layer, a capping layer, a hard mask layer, and forming an opening therein. An absorber layer is then filled in the opening and over the top surface of the hard mask layer. A removing process is provided to form an absorber with a top surface lower than a top surface of the capping layer.
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