发明名称 |
Particle inspection apparatus and method, exposure apparatus, and device manufacturing method |
摘要 |
An inspection apparatus for inspecting a surface of an object for a particle includes an irradiator (7) configured to irradiate the surface (1) with inspection light (14a), a first detector (3) configured to detect light scattered at the surface (1), and a shield (5) configured to limit an irradiation region of the inspection light (14a) emitted by the irradiator (7) within a limited region of the surface (1). The surface (1) is preferably a reticle (1) or a pellicle. The shield (5) is arranged as to limit the irradiation range of inspection light (14a) such that the inspection light (14a) is prevented from striking the edge portion or end face of the object (1) or reticle (1). The generation of diffracted light due to a pattern (20) drawn on the reticle (1) is prevented. The particle scattered light detection accuracy is improved. |
申请公布号 |
EP1715329(A1) |
申请公布日期 |
2006.10.25 |
申请号 |
EP20060003289 |
申请日期 |
2006.02.17 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KOBAYASHI, YOICHIRO |
分类号 |
G01N21/94;G01N21/47;G01N21/956;G03F1/84;H01L21/027;H01L21/66 |
主分类号 |
G01N21/94 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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