发明名称 |
CATADIOPTRIC PROJECTION OBJECTIVE LENS HAVING INTERMEDIATE IMAGE |
摘要 |
PROBLEM TO BE SOLVED: To provide a catadioptric projection objective lens that attains extremely high resolution by a compact design having a dimension optimized.SOLUTION: A catadioptric projection objective lens has: a first objective lens part that forms a first intermediate image by imaging an object field; a second objective lens part that generates a second intermediate image using radiation arriving from the first objective lens part; and a third objective lens part that forms the second intermediate image on an imaging plane surface. The second objective lens part is a catadioptric objective lens part having a concave mirror, and is provided with a first bending mirror that deflects radiation arriving from an object plane surface in a direction of the concave mirror and a second bending mirror that deflects radiation arriving from the concave mirror in a direction of the imaging plane surface. A field lens having positive refractive power is arranged in an area close to a field of the first intermediate image between the first intermediate image and/or the first bending mirror and the concave mirror. |
申请公布号 |
JP2014044445(A) |
申请公布日期 |
2014.03.13 |
申请号 |
JP20130248395 |
申请日期 |
2013.11.29 |
申请人 |
CARL ZEISS SMT GMBH |
发明人 |
DODOC AURELIAN;ULRICH WILHELM;EPPLE ALEXANDER |
分类号 |
G02B17/08;G03F7/20;H01L21/027 |
主分类号 |
G02B17/08 |
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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