发明名称 |
MEASURING SYSTEM FOR MEASURING AN IMAGING QUALITY OF AN EUV LENS |
摘要 |
A measuring system (10) for measuring an imaging quality of an EUV lens (30) comprises: a diffractive test structure (26), a measurement light radiating device (16) which is configured to radiate measurement light (21) in the EUV wavelength range onto the test structure, a variation device (28) for varying at least one image-determining parameter of an imaging of the test structure that is effected by means of a lens, a detector (14) for recording an image stack comprising a plurality of images generated with different image-determining parameters being set, and an evaluation device (15) which is configured to determine the imaging quality of the lens from the image stack. |
申请公布号 |
WO2013139483(A2) |
申请公布日期 |
2013.09.26 |
申请号 |
WO2013EP00875 |
申请日期 |
2013.03.22 |
申请人 |
CARL ZEISS SMT GMBH |
发明人 |
FRESE, RALF;SAMANIEGO, MICHAEL;DEGUENTHER, MARKUS;HAIDNER, HELMUT;HOCH, RAINER;SCHRIEVER, MARTIN |
分类号 |
G03F7/20 |
主分类号 |
G03F7/20 |
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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