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公开(公告)号:EP4006640A1
公开(公告)日:2022-06-01
申请号:EP20209950.3
申请日:2020-11-26
申请人: Stichting Nederlandse Wetenschappelijk Onderzoek Instituten , ASML Netherlands B.V. , Stichting VU , Universiteit van Amsterdam
发明人: KRAUS, Peter Michael , ROSCAM ABBING, Sylvianne Dorothea Christina , CAMPI, Filippo , ZHANG, ZhuangYan , SMORENBURG, Petrus Wilhelmus , LIN, Nan , WITTE, Stefan Michiel , DEN BOEF, Arie Jeffrey
IPC分类号: G03F7/20 , G01N21/47 , G01N21/956 , G01N23/22
摘要: Disclosed is a metrology apparatus and method for measurement of a diffractive structure on a substrate. The metrology apparatus comprises a radiation source operable to provide first radiation for excitation of the diffractive structure such that high harmonic second radiation is generated from said diffractive structure and/or substrate; and a detection arrangement operable to detect said second radiation, at least a portion of which having been diffracted by said diffractive structure.