Lamella creation method and device using fixed-angle beam and rotating sample stage
    1.
    发明申请
    Lamella creation method and device using fixed-angle beam and rotating sample stage 有权
    薄片创建方法和使用固定角度光束和旋转样品台的装置

    公开(公告)号:US20130328246A1

    公开(公告)日:2013-12-12

    申请号:US13493735

    申请日:2012-06-11

    IPC分类号: H01J37/26 H01J37/20

    摘要: A system for creating a substantially planar face in a substrate, the system including directing one or more beams at a first surface of a substrate to remove material from a first location, the beam being offset from a normal to the first surface by a curtaining angle; sweeping the one or more beams in a plane that is perpendicular to the first surface to mill one or more initial cuts, the initial cuts exposing a second surface that is substantially perpendicular to the first surface; rotating the substrate about an axis other than an axis normal to the first beam or parallel to the first beam; directing the first beam at the second surface to remove additional material from the substrate without changing the curtaining angle; and scanning the one or more beams in across the second surface to mill one or more finishing cuts.

    摘要翻译: 一种用于在基板中产生基本上平坦的面的系统,所述系统包括在基板的第一表面处引导一个或多个光束以从第一位置移除材料,所述光束从第一表面的法线偏移一个展示角 ; 在垂直于第一表面的平面中扫掠一个或多个光束以研磨一个或多个初始切割,初始切割暴露基本上垂直于第一表面的第二表面; 围绕除了垂直于第一光束的轴的轴线或平行于第一光束的轴线旋转基板; 在所述第二表面处引导所述第一光束以从所述衬底移除附加材料而不改变所述观察角度; 并且扫描穿过第二表面的一个或多个光束以研磨一个或多个精加工切割。

    System and method for localization of large numbers of fluorescent markers in biological samples
    3.
    发明授权
    System and method for localization of large numbers of fluorescent markers in biological samples 有权
    用于生物样品中大量荧光标记物定位的系统和方法

    公开(公告)号:US08319181B2

    公开(公告)日:2012-11-27

    申请号:US13017016

    申请日:2011-01-30

    IPC分类号: H01J37/26 G01N21/64 G01N23/00

    摘要: A method and system for the imaging and localization of fluorescent markers such as fluorescent proteins or quantum dots within biological samples is disclosed. The use of recombinant genetics technology to insert “reporter” genes into many species is well established. In particular, green fluorescent proteins (GFPs) and their genetically-modified variants ranging from blue to yellow, are easily spliced into many genomes at the sites of genes of interest (GoIs), where the GFPs are expressed with no apparent effect on the functioning of the proteins of interest (PoIs) coded for by the GoIs. One goal of biologists is more precise localization of PoIs within cells. The invention is a method and system for enabling more rapid and precise PoI localization using charged particle beam-induced damage to GFPs. Multiple embodiments of systems for implementing the method are presented, along with an image processing method relatively immune to high statistical noise levels.

    摘要翻译: 公开了用于生物样品中荧光标记如荧光蛋白或量子点的成像和定位的方法和系统。 使用重组遗传技术将报道基因插入许多物种已经很成熟。 特别地,绿色荧光蛋白(GFP)及其从蓝色到黄色的遗传修饰的变体易于在感兴趣的基因(GoI)的位点处接合到许多基因组中,其中GFP表达对功能没有明显的影响 的由GoI编码的感兴趣的蛋白质(PoI)。 生物学家的一个目标是更精确地定位细胞内的PoI。 本发明是一种方法和系统,用于使得能够使用带电粒子束对GFP的损伤进行更快速和精确的PoI定位。 提出了用于实现该方法的系统的多个实施例,以及相对不受高统计噪声水平影响的图像处理方法。

    Combination laser and charged particle beam system
    4.
    发明授权
    Combination laser and charged particle beam system 有权
    组合激光和带电粒子束系统

    公开(公告)号:US08314410B2

    公开(公告)日:2012-11-20

    申请号:US13082372

    申请日:2011-04-07

    IPC分类号: H01J37/26 H01J3/14 H01J37/00

    摘要: A combined laser and charged particle beam system. A pulsed laser enables milling of a sample at material removal rates several orders of magnitude larger than possible for a focused ion beam. In some embodiments, a scanning electron microscope enables high resolution imaging of the sample during laser processing. In some embodiments, a focused ion beam enables more precise milling of the sample. A method and structure for deactivating the imaging detectors during laser milling enables the removal of imaging artifacts arising from saturation of the detector due to a plasma plume generated by the laser beam. In some embodiments, two types of detectors are employed: type-1 detectors provide high gain imaging during scanning of the sample with an electron or ion beam, while type-2 detectors enable lower gain imaging and endpoint detection during laser milling.

    摘要翻译: 组合激光和带电粒子束系统。 脉冲激光器可以以比聚焦离子束可能的数个数量级的材料去除速率对样品进行铣削。 在一些实施例中,扫描电子显微镜能够在激光加工期间对样品进行高分辨率成像。 在一些实施例中,聚焦离子束使得能够更精确地研磨样品。 用于在激光研磨期间去激活成像检测器的方法和结构使得能够消除由激光束产生的等离子体羽流引起的由检测器的饱和引起的成像伪影。 在一些实施例中,采用两种类型的检测器:第一类检测器在用电子或离子束扫描样品期间提供高增益成像,而类型2检测器在激光研磨期间能够进行较低增益成像和端点检测。

    Combination Laser and Charged Particle Beam System
    5.
    发明申请
    Combination Laser and Charged Particle Beam System 有权
    组合激光和带电粒子束系统

    公开(公告)号:US20110248164A1

    公开(公告)日:2011-10-13

    申请号:US13082372

    申请日:2011-04-07

    IPC分类号: H01J37/26 H01J3/14

    摘要: A combined laser and charged particle beam system. A pulsed laser enables milling of a sample at material removal rates several orders of magnitude larger than possible for a focused ion beam. In some embodiments, a scanning electron microscope enables high resolution imaging of the sample during laser processing. In some embodiments, a focused ion beam enables more precise milling of the sample. A method and structure for deactivating the imaging detectors during laser milling enables the removal of imaging artifacts arising from saturation of the detector due to a plasma plume generated by the laser beam. In some embodiments, two types of detectors are employed: type-1 detectors provide high gain imaging during scanning of the sample with an electron or ion beam, while type-2 detectors enable lower gain imaging and endpoint detection during laser milling.

    摘要翻译: 组合激光和带电粒子束系统。 脉冲激光器可以以比聚焦离子束可能的数个数量级的材料去除速率对样品进行铣削。 在一些实施例中,扫描电子显微镜能够在激光加工期间对样品进行高分辨率成像。 在一些实施例中,聚焦离子束使得能够更精确地研磨样品。 用于在激光研磨期间去激活成像检测器的方法和结构使得能够消除由激光束产生的等离子体羽流引起的由检测器的饱和引起的成像伪影。 在一些实施例中,采用两种类型的检测器:第一类检测器在用电子或离子束扫描样品期间提供高增益成像,而类型2检测器在激光研磨期间能够进行较低增益成像和端点检测。

    Through-the-lens neutralization for charged particle beam system
    6.
    发明授权
    Through-the-lens neutralization for charged particle beam system 有权
    用于带电粒子束系统的透镜中和

    公开(公告)号:US06683320B2

    公开(公告)日:2004-01-27

    申请号:US09859295

    申请日:2001-05-16

    IPC分类号: H01J3726

    摘要: An electron source provides electrons that are directed through the final lens of an ion optical column to neutralize at least a portion of the accumulated charge on a sample. The invention can optionally be combined with collection of secondary electrons through the final ion lens. A deflector directs the neutralizing electrons onto the ion beam optical axis and deflects the secondary electrons away from the optical axis for detection. For imaging, a high-pass energy filter separates secondary electrons generated from the neutralizing electron beam from secondary electrons generated by the ion beam.

    摘要翻译: 电子源提供被引导通过离子光学柱的最终透镜的电子,以中和样品上的累积电荷的至少一部分。 本发明可以任选地与通过最终离子透镜收集二次电子组合。 偏转器将中和电子引导到离子束光轴上,并将二次电子偏离光轴以进行检测。 对于成像,高通能量滤波器将由中和电子束产生的二次电子与离子束产生的二次电子分开。

    On-axis detector for charged particle beam system
    10.
    发明授权
    On-axis detector for charged particle beam system 有权
    用于带电粒子束系统的轴上探测器

    公开(公告)号:US08759764B2

    公开(公告)日:2014-06-24

    申请号:US13538851

    申请日:2012-06-29

    IPC分类号: H01J37/256

    摘要: A split grid multi-channel secondary particle detector for a charged particle beam system includes a first grid segment and a second grid segment, each having independent bias voltages creating an electric field such that the on-axis secondary particles that are emitted from the target are directed to one of the grids. The bias voltages of the grids can be changed or reversed so that each grid can be used to detect the secondary particles and the multi-channel particle detector as a whole can extend its lifetime.

    摘要翻译: 用于带电粒子束系统的分裂网格多通道二次粒子检测器包括第一栅格区段和第二栅极区段,每个区段具有独立的偏置电压,从而产生电场,使得从靶发射的轴上二次颗粒为 指向其中一个网格。 网格的偏置电压可以改变或反转,以便每个网格可以用于检测次级粒子,并且多通道粒子检测器作为一个整体可以延长其寿命。