High energy ion implanter, beam current adjuster, and beam current adjustment method
    7.
    发明授权
    High energy ion implanter, beam current adjuster, and beam current adjustment method 有权
    高能离子注入机,束流调节器和束流调节方法

    公开(公告)号:US09269541B2

    公开(公告)日:2016-02-23

    申请号:US14549016

    申请日:2014-11-20

    Abstract: A beam current adjuster for an ion implanter includes a variable aperture device which is disposed at an ion beam focus point or a vicinity thereof. The variable aperture device is configured to adjust an ion beam width in a direction perpendicular to an ion beam focusing direction at the focus point in order to control an implanting beam current. The variable aperture device may be disposed immediately downstream of a mass analysis slit. The beam current adjuster may be provided with a high energy ion implanter including a high energy multistage linear acceleration unit.

    Abstract translation: 用于离子注入机的束流调节器包括设置在离子束聚焦点或其附近的可变孔径装置。 可变孔径装置被配置为在焦点处调整垂直于离子束聚焦方向的方向上的离子束宽度,以便控制注入束电流。 可变孔径装置可以紧靠质量分析狭缝的下游设置。 束电流调节器可以设置有包括高能多级线性加速单元的高能离子注入机。

    SCANNING ELECTRON MICROSCOPE AND SCANNING TRANSMISSION ELECTRON MICROSCOPE
    8.
    发明申请
    SCANNING ELECTRON MICROSCOPE AND SCANNING TRANSMISSION ELECTRON MICROSCOPE 有权
    扫描电子显微镜和扫描传输电子显微镜

    公开(公告)号:US20140138542A1

    公开(公告)日:2014-05-22

    申请号:US14232526

    申请日:2012-07-19

    Abstract: A scanning transmission electron microscope according to the present invention includes an electron lens system having a small spherical aberration coefficient for enabling three-dimensional observation of a 0.1 nm atomic size structure. The scanning transmission electron microscope according to the present invention also includes an aperture capable of changing an illumination angle; an illumination electron lens system capable of changing the probe size of an electron beam probe and the illumination angle; a secondary electron detector (9); a transmission electron detector (13); a forward scattered electron beam detector (12); a focusing unit (16); an image processor for identifying image contrast; an image processor for computing image sharpness; a processor for three-dimensional reconstruction of an image; and a mixer (18) for mixing a secondary electron signal and a specimen forward scattered electron signal.

    Abstract translation: 根据本发明的扫描透射电子显微镜包括具有小球面像差系数的电子透镜系统,用于实现0.1nm原子尺寸结构的三维观察。 根据本发明的扫描透射电子显微镜还包括能够改变照明角度的孔; 能够改变电子束探头的探头尺寸和照明角度的照明电子透镜系统; 二次电子检测器(9); 透射电子检测器(13); 前向散射电子束检测器(12); 聚焦单元(16); 用于识别图像对比度的图像处理器; 用于计算图像清晰度的图像处理器; 用于图像的三维重建的处理器; 以及用于混合二次电子信号和样本前向散射电子信号的混合器(18)。

    Frequency adjusting apparatus
    9.
    发明授权
    Frequency adjusting apparatus 有权
    频率调节装置

    公开(公告)号:US08319197B2

    公开(公告)日:2012-11-27

    申请号:US12487635

    申请日:2009-06-18

    Applicant: Hitoshi Seki

    Inventor: Hitoshi Seki

    Abstract: A wafer having a plurality of elements closely arranged thereon is irradiated with an ion beam while being conveyed in one direction by a conveying unit. Each of shutters adjusts an irradiation time during which a target area of the wafer is irradiated with the ion beam. Thus, a frequency in the target area is adjusted. Each of a plurality of mask holes in a pattern mask disposed between the wafer and the shutters corresponds to one area of the wafer. The mask holes are alternately displaced in a wafer conveying direction in which the wafer is conveyed, and are arranged in a plurality of columns perpendicular to the wafer conveying direction. To individually open and close the mask holes, the shutters are arranged to correspond to the respective mask holes. Thus, frequency adjustment, for areas in one column perpendicular to the wafer conveying direction, is performed in multiple steps.

    Abstract translation: 具有紧密配置的多个元件的晶片在被输送单元沿一个方向输送的同时用离子束照射。 每个挡板调节用离子束照射晶片的目标区域的照射时间。 因此,调整目标区域中的频率。 布置在晶片和快门之间的图案掩模中的多个掩模孔中的每一个对应于晶片的一个区域。 掩模孔在输送晶片的晶片传送方向上交替位移,并且布置在垂直于晶片传送方向的多个列中。 为了单独打开和关闭掩模孔,快门被布置成对应于相应的掩模孔。 因此,对于垂直于晶片输送方向的一列的区域的频率调整,是以多个步骤进行的。

    High-sensitivity and high-throughput electron beam inspection column enabled by adjustable beam-limiting aperture
    10.
    发明授权
    High-sensitivity and high-throughput electron beam inspection column enabled by adjustable beam-limiting aperture 有权
    高灵敏度和高通量的电子束检查柱,通过可调节的光束限制孔径实现

    公开(公告)号:US08294125B2

    公开(公告)日:2012-10-23

    申请号:US12634444

    申请日:2009-12-09

    Abstract: One embodiment relates to an electron-beam apparatus for defect inspection and/or review of substrates or for measuring critical dimensions of features on substrates. The apparatus includes an electron gun and an electron column. The electron gun includes an electron source configured to generate electrons for an electron beam and an adjustable beam-limiting aperture which is configured to select and use one aperture size from a range of aperture sizes. Another embodiment relates to providing an electron beam in an apparatus. Advantageously, the disclosed apparatus and methods reduce spot blur while maintaining a high beam current so as to obtain both high sensitivity and high throughput.

    Abstract translation: 一个实施例涉及一种用于缺陷检查和/或检查基板或用于测量基板上的特征的关键尺寸的电子束装置。 该装置包括电子枪和电子柱。 电子枪包括被配置为产生用于电子束的电子的电子源和可调节的光束限制孔,其被配置为从一定范围的孔径尺寸中选择和使用一个孔径尺寸。 另一实施例涉及在装置中提供电子束。 有利地,所公开的装置和方法在保持高光束电流的同时减少斑点模糊,以便获得高灵敏度和高吞吐量。

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