Dual beam system
    6.
    发明公开
    Dual beam system 有权
    Zweistrahlsystem

    公开(公告)号:EP1501115A2

    公开(公告)日:2005-01-26

    申请号:EP04076891.3

    申请日:2004-07-01

    Applicant: FEI Company

    Abstract: A dual beam system includes an ion beam system and a scanning electron microscope with a magnetic objective lens. The ion beam system is adapted to operate optimally in the presence of the magnetic field from the SEM objective lens, so that the objective lens is not turned off during operation of the ion beam. An optional secondary particle detector and an optional charge neutralization flood gun are adapted to operate in the presence of the magnetic field. The magnetic objective lens is designed to have a constant heat signature, regardless of the strength of magnetic field being produced, so that the system does not need time to stabilize when the magnetic field is changed.

    Abstract translation: 双光束系统包括离子束系统和具有磁性物镜的扫描电子显微镜。 离子束系统适于在存在来自SEM物镜的磁场的情况下最佳地操作,使得在离子束操作期间物镜不被关闭。 可选的二次粒子检测器和可选的电荷中和喷枪适于在存在磁场的情况下操作。 磁物镜被设计成具有恒定的热标记,而不管产生的磁场的强度如何,使得当磁场改变时,系统不需要时间稳定。

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