- 专利标题: Planarized extreme ultraviolet lithography blank with absorber and manufacturing system therefor
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申请号: US15405860申请日: 2017-01-13
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公开(公告)号: US10012897B2公开(公告)日: 2018-07-03
- 发明人: Vinayak Vishwanath Hassan , Majeed Foad , Cara Beasley , Ralf Hofmann
- 申请人: Applied Materials, Inc.
- 申请人地址: US CA Santa Clara
- 专利权人: APPLIED MATERIALS, INC.
- 当前专利权人: APPLIED MATERIALS, INC.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Servilla Whitney LLC
- 主分类号: G03F1/24
- IPC分类号: G03F1/24 ; G03F1/38 ; C23C16/06 ; C23C16/44
摘要:
An extreme ultraviolet (EUV) mask blank production system includes: a substrate handling vacuum chamber for creating a vacuum; a substrate handling platform, in the vacuum, for transporting an ultra-low expansion substrate loaded in the substrate handling vacuum chamber; and multiple sub-chambers, accessed by the substrate handling platform, for forming an EUV mask blank includes: a first sub-chamber for forming a multi-layer stack, above the ultra-low expansion substrate, for reflecting an extreme ultraviolet (EUV) light; and a second sub-chamber for forming a bi-layer absorber, formed above the multi-layer stack, for absorbing the EUV light at a wavelength of 13.5 nm provides a reflectivity of less than 1.9%.
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