Focused ion beam apparatus and focused ion beam irradiation method
    83.
    发明申请
    Focused ion beam apparatus and focused ion beam irradiation method 有权
    聚焦离子束装置和聚焦离子束照射法

    公开(公告)号:US20060022150A1

    公开(公告)日:2006-02-02

    申请号:US11189901

    申请日:2005-07-27

    IPC分类号: H01J1/50

    摘要: A focused ion beam apparatus and a focused ion beam irradiation method are disclosed. Even in the case where a magnetic field exists on the optical axis of an ion beam and the particular magnetic field undergoes a change, the ion beam is focused without separating the isotopes on the sample at the same ion beam spot position as if the magnetic field is not existent. A canceling magnetic field is generated on the optical axis of the ion beam from a canceling magnetic field generator thereby to offset the deflection of the ion beam due to the external magnetic field.

    摘要翻译: 公开了一种聚焦离子束装置和聚焦离子束照射方法。 即使在离子束的光轴上存在磁场并且特定的磁场发生变化的情况下,也可以将离子束聚焦,而不会在相同的离子束点位置分离样品上的同位素,就像磁场 不存在 在来自消除磁场发生器的离子束的光轴上产生消除磁场,从而抵消由于外部磁场引起的离子束的偏转。

    Mass spectrometer
    85.
    发明授权
    Mass spectrometer 失效
    质谱仪

    公开(公告)号:US5756993A

    公开(公告)日:1998-05-26

    申请号:US754356

    申请日:1996-11-22

    CPC分类号: H01J49/025 G01N30/72

    摘要: A sample separated through a pre-processor part having a gas chromatography (GC) or a liquid chromatography (LC) and a moving bed eliminating part is ionized by an ion source and mass-analyzed by a mass-analyzing part. The mass-analyzed ions are deflected and focused by a deflecting portion and a focusing portion in a deflecting and focusing part, and is detected by an ion detecting part. The result of detection is processed by a data processing part.

    摘要翻译: 通过具有气相色谱(GC)或液相色谱(LC)和移动床消除部分的预处理器部分分离的样品通过离子源离子化并通过质量分析部分进行质量分析。 质量分析的离子被偏转部分和聚焦部分偏转和聚焦在偏转和聚焦部分中,并由离子检测部分检测。 检测结果由数据处理部分处理。

    Apparatus and method for suppressing electrification of sample in
charged beam irradiation apparatus
    86.
    发明授权
    Apparatus and method for suppressing electrification of sample in charged beam irradiation apparatus 失效
    用于抑制带电束照射装置中样品带电的装置和方法

    公开(公告)号:US5466929A

    公开(公告)日:1995-11-14

    申请号:US20802

    申请日:1993-02-22

    IPC分类号: H01J37/02 H01J37/30 H05H3/00

    摘要: When a charged beam is irradiated on a sample, charge up of electric charge of the same polarity as that of the charged beam is built up on the sample surface. In order to neutralize the charge up electric charge, an apparatus for suppressing electrification of sample in charged beam irradiation apparatus is provided in which electric charge of opposite polarity to that of the charged beam is generated near the sample surface to neutralize the charged beam or charge up electric charge on the sample surface. The electric charge for neutralization is generated by admitting elecrtic charge from a plasma generation unit to the vicinity of the sample surface, ionizing gas generated from the sample surface by causing the charged beam to collide the gas or by irradiating electrons from an electron source on the sample surface. Especially when there is a possibility that impurities other than the electric charge for neutralization affect the sample adversely, an impurity generation source is blind folded with a cover so as not to be seen through from the sample and charged beam so that the impurities may be prevented from impinging upon the sample surface or intersecting the charged beam path.

    摘要翻译: 当将带电束照射在样品上时,在样品表面上积累与带电束相同极性的电荷的充电。 为了中和充电电荷,提供了一种用于抑制带电束照射装置中的样品带电的装置,其中在样品表面附近产生与带电束的极性相反极性的电荷以中和充电的光束或电荷 样品表面上的电荷。 用于中和的电荷是通过将等离子体发生单元的电荷进入到样品表面附近而产生的,通过使带电的束撞击气体或通过在电子源上照射电子而从样品表面产生的电离电离 样品表面。 特别是当除了中和电荷以外的杂质有可能不利地影响样品时,杂质产生源被遮盖物盲目地折叠,从而不能从样品和带电束中透过,从而可以防止杂质 撞击在样品表面上或与带电光束相交。