发明授权
US06979819B2 Photoelectron emission microscope for wafer and reticle inspection
有权
光电子发射显微镜用于晶圆和掩模版检查
- 专利标题: Photoelectron emission microscope for wafer and reticle inspection
- 专利标题(中): 光电子发射显微镜用于晶圆和掩模版检查
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申请号: US10017262申请日: 2001-12-14
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公开(公告)号: US06979819B2公开(公告)日: 2005-12-27
- 发明人: David Adler , Matthew Marcus
- 申请人: David Adler , Matthew Marcus
- 申请人地址: US CA Milpitas
- 专利权人: KLA-Tencor Technologies Corporation
- 当前专利权人: KLA-Tencor Technologies Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Okamoto & Benedicto LLP
- 主分类号: G01N23/227
- IPC分类号: G01N23/227 ; H01J37/285
摘要:
A method of inspecting and imaging substrates with an electron beam. The method can include a illuminating the substrate with a photon beam to cause photoemission of electrons. A low energy electron beam can be used to prevent or reduce positive charging of the substrate. Reflected electrons and/or emitted photoelectrons can be imaged to review or inspect the substrate.
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