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    • 28. 发明公开
    • Beam optical component having a charged particle lens
    • Strahlenoptische Komponente mit einer teilchenoptischen Linse
    • EP1557866A1
    • 2005-07-27
    • EP04001222.1
    • 2004-01-21
    • ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
    • Frosien, Jürgen, Dr.
    • H01J37/15H01J37/10H01J37/14
    • H01J37/14H01J37/12H01J37/15H01J2237/1501
    • The present invention relates to a beam optical component including a charged particle lens (1; 1000) for focusing a charged particle beam (3), the charged particle lens (1; 1000) comprising a first element (5; 1005) having a first opening (7) for focusing the charged particle beam (3); a second element (9; 1009) having a second opening (11) for focusing the charged particle beam (3); and first driving means (13) connected with at least one of the first element (5; 1005) and the second element (9; 1009) for aligning the first opening (7) with respect to the second opening (11). With the first driving means, the first opening (7) and the second opening (11) can be aligned with respect to each other during beam operation to provide a superior alignment of the beam optical component for a better beam focussing. The present invention also relates to a charged particle beam device that uses said beam optical component for focussing the charged particle beam (3), and a method to align first opening (7) and second opening (11) with respect to each other.
    • 本发明涉及一种束光学部件,其包括用于聚焦带电粒子束(3)的带电粒子透镜(1; 1000),所述带电粒子透镜(1; 1000)包括具有第一元件(5; 1005)的第一元件 用于聚焦带电粒子束(3)的开口(7); 具有用于聚焦带电粒子束(3)的第二开口(11)的第二元件(9; 1009); 以及与所述第一元件(5; 1005)和所述第二元件(9; 1009)中的至少一个连接的用于使所述第一开口(7)相对于所述第二开口(11)对准的第一驱动装置(13)。 利用第一驱动装置,在光束操作期间,第一开口(7)和第二开口(11)可以相对于彼此对准,以提供光束光学部件的优良对准以实现更好的光束聚焦。 本发明还涉及使用所述光束光学部件来聚焦带电粒子束(3)的带电粒子束装置,以及使第一开口(7)和第二开口(11)相对于彼此对准的方法。