Scanning electron microscope
    41.
    发明授权
    Scanning electron microscope 失效
    扫描电子显微镜

    公开(公告)号:US5677531A

    公开(公告)日:1997-10-14

    申请号:US691029

    申请日:1996-08-07

    CPC classification number: H01J37/244 H01J2237/2002 H01J2237/24445

    Abstract: A scanning electron microscope is provided for forming an image of a specimen based upon a secondary electron signal corresponding to secondary electrons detected by a secondary electron detecting electrode. The secondary electrons are emitted from the specimen when irradiated with a beam of electrons, and multiplied in a secondary electron multiplication region having a controlled gaseous atmosphere at a predetermined pressure. The scanning electron microscope further includes a multiplication environment detecting section that detects a physical quantity related to a degree of multiplication of the secondary electrons, and a specimen image adjusting section that adjusts an appearance of the formed image of the specimen based upon the physical quantity detected by the multiplication environment detecting section.

    Abstract translation: 提供扫描电子显微镜,用于基于对应于由二次电子检测电极检测的二次电子的二次电子信号形成样本的图像。 当用电子束照射时,二次电子从样品发射,并且在具有受控气体气氛的二次电子倍增区域中以预定压力倍增。 扫描电子显微镜还包括检测与二次电子的倍增相关的物理量的乘法环境检测部,以及根据检测到的物理量来调整形成的样本的图像的外观的检体图像调整部 由乘法环境检测部分。

    Apparatus for the transfer and in-situ reactions under a controlled
atmosphere, of specimens for transmissive electron microscopy
    42.
    发明授权
    Apparatus for the transfer and in-situ reactions under a controlled atmosphere, of specimens for transmissive electron microscopy 失效
    用于在受控气氛下的转移和原位反应的装置,用于透射电子显微镜的样品

    公开(公告)号:US5036205A

    公开(公告)日:1991-07-30

    申请号:US437804

    申请日:1989-11-17

    CPC classification number: H01J37/18 H01J2237/2002 H01J2237/2006

    Abstract: The present invention concerns a device for the transfer and in-situ reactions under a controlled atmosphere, of specimens for transmissive electron microscopy, characterized in that it is additionally provided with a means (7) for guiding and locking in transport and analysis positions of the rod (1) provided with the grid holders (2), the said rod (1) being advantageously integrated by screwing with the corresponding end of the traction bar (5) which is guided in the cover (3), of which the opening (9) of the front part (3') of lesser diameter is extended over a portion of the length of this front part (3'), on both sides, by longitudinal grooves (10), the said front part (3') being connected to the rest of the cover (3) by screwing of a shouldered portion (11), a gasket (13') effecting the sealing at the level of the screwed assembly.

    Abstract translation: 本发明涉及一种用于透射电子显微镜的样品在受控气氛下的转移和原位反应的装置,其特征在于,还具有一个装置(7),用于引导和锁定运输和分析位置 杆(1)设置有格栅保持器(2),所述杆(1)有利地通过与在盖(3)中被引导的牵引杆(5)的相应端部螺合而被集成,其中开口 较小直径的前部(3')的前后部分(3')的前部(3')的前部(3')的前部(3')在纵向凹槽(10)的两侧在该前部(3')的长度的一部分上延伸, 通过旋转肩部(11)连接到盖(3)的其余部分,在螺纹组件的水平处实现密封的垫圈(13')。

    Preparation of sample for charged-particle microscopy

    公开(公告)号:US09772265B2

    公开(公告)日:2017-09-26

    申请号:US15052313

    申请日:2016-02-24

    Applicant: FEI Company

    Abstract: A system and method for preparing a sample for study in a charged-particle microscope is disclosed. A sample holder comprises substantially parallel opposing faces connected by apertures spanned by a perforated membrane. Blotting material is placed against the outer membrane surface, and liquid films may then be deposited onto the inner membrane surface within each aperture where each aperture can contain a unique sample. Liquids from each sample flow through the perforations in the membrane to be absorbed by the blotting material. After completion of deposition of liquid samples, the sample holder is raised off the blotting material, leaving aqueous samples within the perforations of the membrane. The sample holder may then be immersed in a vitrifying bath of liquid oxygen to form a cryo-sample for microscopic imaging and analysis.

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