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    • 11. 发明授权
    • Arrangement and method for the contrast improvement in a charged particle beam device for inspecting a specimen
    • 用于检查样本的带电粒子束装置的对比度改善的布置和方法
    • US08530837B2
    • 2013-09-10
    • US13204528
    • 2011-08-05
    • Pavel Adamec
    • Pavel Adamec
    • H01J37/285G01N23/00G21K7/00
    • H01J37/244H01J37/28H01J2237/2449H01J2237/245
    • A charged particle beam device for inspecting a specimen includes a charged particle beam source adapted to generate a primary charged particle beam; an objective lens device adapted to direct the primary charged particle beam onto the specimen; a retarding field device adapted to accelerate secondary charged particles starting from the specimen, a first detector device having a central opening, includes at least two azimuthal detector segments for detecting secondary particles, wherein the objective lens device is adapted such that particles with different starting angles from the specimen exhibit crossovers at substantially the same distance from the specimen between the objective lens and the detector device, and an aperture located between the objective lens and the crossovers, having an opening which is equal to or smaller than the central opening in the detector device.
    • 用于检查样本的带电粒子束装置包括适于产生初级带电粒子束的带电粒子束源; 适于将初级带电粒子束引导到样本上的物镜装置; 适于加速从样本开始的次级带电粒子的延迟场设备,具有中心开口的第一检测器装置包括至少两个用于检测次级粒子的方位角检测器段,其中物镜装置适于使得起始角度不同的颗粒 来自该样本的物镜在与物镜和检测器装置之间的样本基本上相同的距离处展开交叉,以及位于物镜和交越器之间的孔,其具有等于或小于检测器中的中心开口的开口 设备。