Portable high resolution scanning electron microscope column using permanent magnet electron lenses
    4.
    发明授权
    Portable high resolution scanning electron microscope column using permanent magnet electron lenses 失效
    便携式高分辨率扫描电子显微镜柱,采用永磁电子透镜

    公开(公告)号:US06320194B1

    公开(公告)日:2001-11-20

    申请号:US09563117

    申请日:2000-05-02

    IPC分类号: H01J3718

    摘要: A detachable, portable SEM column that is easily disconnected from the electron gun assembly and specimen chamber of the system, allowing different column designs to be used in a given SEM system. As an alternate design, the electron gun and column are configured as a single detachable, portable assembly. The column of the present invention contains a condenser lens and an objective lens, both designed employing permanent magnet elements for primary field generation. Relatively small coils are used for scanning and precise adjustment of focus.

    摘要翻译: 可拆卸的便携式SEM柱,易于与系统的电子枪组件和样品室断开,允许在给定SEM系统中使用不同的色谱柱设计。 作为替代设计,电子枪和柱被配置为单个可拆卸的便携式组件。 本发明的列包含聚光透镜和物镜,它们均采用永磁体元件进行设计,用于初级场产生。 相对小的线圈用于扫描和精确调整焦点。

    Portable high resolution scanning electron microscope column using
permanent magnet electron lenses
    5.
    发明授权
    Portable high resolution scanning electron microscope column using permanent magnet electron lenses 失效
    便携式高分辨率扫描电子显微镜柱,采用永磁电子透镜

    公开(公告)号:US6057553A

    公开(公告)日:2000-05-02

    申请号:US016593

    申请日:1998-01-30

    IPC分类号: H01J37/14 H01J37/28 H01J37/18

    摘要: A detachable, portable SEM column that is easily disconnected from the electron gun assembly and specimen chamber of the system, allowing different column designs to be used in a given SEM system. As an alternate design, the electron gun and column are configured as a single detachable, portable assembly. The column of the present invention contains a condenser lens and an objective lens, both designed employing permanent magnet elements for primary field generation. Relatively small coils are used for scanning and precise adjustment of focus.

    摘要翻译: 可拆卸的便携式SEM柱,易于与系统的电子枪组件和样品室断开,允许在给定SEM系统中使用不同的色谱柱设计。 作为替代设计,电子枪和柱被配置为单个可拆卸的便携式组件。 本发明的列包含聚光透镜和物镜,它们均采用永磁体元件进行设计,用于初级场产生。 相对小的线圈用于扫描和精确调整焦点。