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    • 1. 发明申请
    • EXTRACTION ELECTRODE ASSEMBLY VOLTAGE MODULATION IN AN ION IMPLANTATION SYSTEM
    • 提取电极组件在离子植入系统中的电压调节
    • WO2014179687A1
    • 2014-11-06
    • PCT/US2014/036578
    • 2014-05-02
    • AXCELIS TECHNOLOGIES, INC.COLVIN, NeilZHANG, Jincheng
    • COLVIN, NeilZHANG, Jincheng
    • H01J37/317H01J37/08
    • H01J37/3171H01J37/08H01J2237/022H01J2237/304
    • A method is disclosed for reducing particle contamination in an ion implantation system, wherein an ion beam is created via the ion source operating in conjunction with an extraction electrode assembly. A cathode voltage is applied to the ion source for generating ions therein, and a suppression voltage is applied to the extraction assembly for preventing electrons in the ion beam from being drawn into the ion source. The suppression voltage is selectively modulated, thereby inducing a current flow or an arc discharge through the extraction assembly to remove deposits on surfaces thereof to mitigate subsequent contamination of workpieces. An improvement to an ion implantation system is also disclosed in accordance with the foregoing, wherein a controller is configured to selectively modulate a voltage between a predetermined voltage and a predetermined suppression voltage generally concurrent with the transferring of the workpiece, thereby inducing a current flow or an arc discharge through the extraction electrode assembly to remove deposits on surfaces thereof to mitigate subsequent contamination of workpieces.
    • 公开了一种用于减少离子注入系统中的颗粒污染的方法,其中通过与抽出电极组件一起操作的离子源产生离子束。 向离子源施加阴极电压以产生离子,并且将抑制电压施加到提取组件,以防止离子束中的电子被吸入离子源。 抑制电压被选择性地调制,从而通过提取组件引起电流或电弧放电以去除其表面上的沉积物,以减轻随后的工件污染。 根据前述还公开了对离子注入系统的改进,其中控制器被配置为选择性地调制预定电压和预定的抑制电压之间的电压,通常与工件的传送并行,从而引起电流或 通过引出电极组件的电弧放电以去除其表面上的沉积物,以减轻随后的工件污染。
    • 8. 发明申请
    • TWO DIMENSIONAL STATIONARY BEAM PROFILE AND ANGULAR MAPPING
    • 两维静态光束轮廓和角度映射
    • WO2006126997A1
    • 2006-11-30
    • PCT/US2005/018083
    • 2005-05-23
    • AXCELIS TECHNOLOGIES, INC.BENVENISTE, Victor
    • BENVENISTE, Victor
    • H01J37/317H01J37/244
    • H01J37/3171H01J2237/244H01J2237/24507H01J2237/24528H01J2237/304H01J2237/31703
    • An ion beam uniformity detector (300) of the present invention includes a number of horizontal rods (302) and a number of vertical rods (301) placed on parallel planes and separated by a selected distance. Crossover measurement points are defined by intersections of the horizontal and vertical rods. By selectively and sequentially applying a pulse to the vertical rods and concurrently biasing horizontal rods, measurements can be obtained for the crossover measurement points, which can then be employed to determine ion beam shape and ion beam intensity at the crossover measurement points. Based on these measurements, adjustments can be made to a continuing ion implantation process in order to increase uniformity with respect to intensity as well as to provide a desired beam shape. Additionally, pairs of vertical and horizontal rods can be employed to also obtain measurements that indicate angle of incidence in two dimensions at the various crossover points.
    • 本发明的离子束均匀性检测器(300)包括多个水平杆(302)和多个垂直杆(301),放置在平行平面上并分离出选定的距离。 交叉测量点由水平杆和垂直杆的交点定义。 通过选择性地并且顺序地向垂直杆施加脉冲并且同时偏置水平杆,可以获得交叉测量点的测量值,然后可以采用该测量点来确定交叉测量点处的离子束形状和离子束强度。 基于这些测量,可以进行连续离子注入工艺的调整,以便增加相对于强度的均匀性以及提供期望的光束形状。 此外,可以使用成对的垂直杆和水平杆来获得在各个交叉点处二维地指示入射角的测量。
    • 10. 发明申请
    • CHARGED PARTICLE BEAM LITHOGRAPHY SYSTEM AND TARGET POSITIONING DEVICE
    • 充电颗粒光束光刻系统和目标定位装置
    • WO2010021543A1
    • 2010-02-25
    • PCT/NL2009/050499
    • 2009-08-18
    • MAPPER LITHOGRAPHY IP B.V.PEIJSTER, JerryDE BOER, Guido
    • PEIJSTER, JerryDE BOER, Guido
    • H01J37/20H01J37/317
    • H01J37/3174B82Y10/00B82Y40/00H01J37/20H01J37/26H01J2237/026H01J2237/202H01J2237/304
    • The invention relates to a charged particle beam lithography system comprising: a charged particle optical column arranged in a vacuum chamber for projecting a charged particle beam onto a target, wherein the column comprises deflecting means for deflecting the charged particle beam in a deflection direction, a target positioning device comprising a carrier for carrying the target, and a stage for carrying and moving the carrier along a first direction, wherein the first direction is different from the deflection direction, wherein the target positioning device comprises a first actuator for moving the stage in the first direction relative to the charged particle optical column, wherein the carrier is displaceably arranged on the stage and wherein the target positioning device comprises retaining means for retaining the carrier with respect to the stage in a first relative position.
    • 本发明涉及一种带电粒子束光刻系统,包括:带电粒子光学柱,布置在真空室中,用于将带电粒子束投射到靶上,其中该柱包括偏转装置,用于偏转带电粒子束的偏转方向, 目标定位装置,包括用于承载目标的载体,以及用于沿着第一方向承载和移动载体的载物台,其中所述第一方向不同于所述偏转方向,其中所述目标定位装置包括用于使所述载物台移动的第一致动器 相对于带电粒子光学柱的第一方向,其中所述载体可位移地布置在所述载物台上,并且其中所述目标定位装置包括用于将所述载体相对于所述载物台保持在第一相对位置的保持装置。