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    • 5. 发明公开
    • Electrostatic beam deflection scanner and beam deflection scanning method
    • 扫描仪电视机和Verfahren zur Strahlablenkung
    • EP1863065A2
    • 2007-12-05
    • EP07109255.5
    • 2007-05-30
    • SEN Corporation, an SHI and Axcelis Company
    • Tsukihara, MitsukuniKabasawa, MitsuakiAmano, YoshitakaMatsuhita, Hiroshi
    • H01J37/147H01J37/153H01J37/317
    • H01J37/153H01J37/1477H01J37/3171H01J2237/30477
    • The present invention provides for a beam deflection scanner (20) performs reciprocating deflection scanning with an ion beam or a charged particle beam to thereby periodically change a beam trajectory and comprises a pair of scanning electrodes (21A,21B) installed so as to be opposed to each other with the beam trajectory interposed therebetween and a pair of correction electrodes (27,28) installed in a direction perpendicular to an opposing direction of the pair of scanning electrodes, with the beam trajectory interposed therebetween, and extending along a beam traveling axis. Positive and negative potentials are alternately applied to the pair of scanning electrodes (21A,21B), while a correction voltage is constantly applied to the pair of correction electrodes (27,28). A correction electric field produced by the pair of correction electrodes (27,28) is exerted on the ion beam or the charged particle beam passing between the pair of scanning electrodes (21A,21B) at the time of switching between the positive and negative potentials.
    • 本发明提供了一种光束偏转扫描器(20),其利用离子束或带电粒子束进行往复偏转扫描,从而周期性地改变光束轨迹,并包括一对安装成相对的扫描电极(21A,21B) 彼此之间具有光束轨迹,并且一对校正电极(27,28)安装在垂直于该对扫描电极的相反方向的方向上,其中光束轨迹插入其间,并且沿着光束移动轴线 。 在一对扫描电极(21A,21B)上交替地施加正电位和负电位,同时对该对校正电极(27,28)施加校正电压。 一对校正电极(27,28)产生的校正电场施加在在正电位和负电位之间切换时在离子束或通过一对扫描电极(21A,21B)之间的带电粒子束 。