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    • 67. 发明公开
    • High brightness electron gun with moving condenser lens
    • Elektronenoptisches System mit High-Brightness-Elektronenkanone mit Kondensatorlinse mit variabler Achse
    • EP2672502A1
    • 2013-12-11
    • EP12171023.0
    • 2012-06-06
    • ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
    • Frosien, Juergen
    • H01J37/141H01J37/067
    • H01J37/067H01J37/141H01J2237/06325H01J2237/1501
    • A condenser lens arrangement (320; 420; 600; 720) for an electron beam system is described. The condenser lens arrangement includes a magnetic condenser lens (321; 42; 610; 721) adapted for generating a magnetic condenser lens field, the condenser lens having a symmetry axis (450; 725), and a magnetic deflector (322; 422; 500) adapted for generating a magnetic deflector field. The deflector is configured so that the superposition of the magnetic condenser lens field and the magnetic deflector field results in an optical axis (730) of the condenser lens arrangement being movable relative to the symmetry axis (450; 725). Further, an electron beam optical system including a condenser lens arrangement (700) and a method (800; 900) for moving a condenser lens are described.
    • 描述了一种用于电子束系统的聚光透镜装置(320; 420; 600; 720)。 聚光透镜装置包括适于产生磁聚焦透镜场的磁聚焦透镜(321; 42; 610; 721),所述聚光透镜具有对称轴(450; 725)和磁偏转器(322; 422; 500 )适于产生磁偏转器场。 偏转器被配置为使得磁聚光透镜场和磁偏转器场的叠加导致聚光透镜装置的光轴(730)能够相对于对称轴线(450; 725)移动。 此外,描述了包括聚光透镜装置(700)和用于移动聚光透镜的方法(800; 900)的电子束光学系统。