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    • 6. 发明公开
    • Dose-based end-pointing for low-kv FIB milling in TEM sample preparation
    • Dissbasierte Endpunktbestimungfürdas Nieder-kV-FIB-Ätzenbei der TEM-Probenherstellung
    • EP2704179A2
    • 2014-03-05
    • EP13182112.6
    • 2013-08-29
    • FEI COMPANY
    • Miller, TomArjavac, JasonMoriarty, Michael
    • H01J37/304H01J37/305H01J37/302G01N1/32
    • C23F1/04G01N1/32H01J37/3023H01J37/3056H01J2237/30466H01J2237/31745
    • A method, system, and computer-readable medium for forming transmission electron microscopy sample lamellae (104) using a focused ion beam including directing a high energy focused ion beam toward a bulk volume of material; milling away the unwanted volume of material to produce an unfinished sample lamella with one or more exposed faces having a damage layer; characterizing the removal rate of the focused ion beam; subsequent to characterizing the removal rate, directing a low energy focused ion beam toward the unfinished sample lamella for a predetermined milling time to deliver a specified dose of ions per area from the low energy focused ion beam; and milling the unfinished sample lamella with the low energy focused ion beam to remove at least a portion of the damage layer (402) to produce the finished sample lamella (304) including at least a portion of the feature of interest.
    • 一种用于使用聚焦离子束形成透射电子显微镜样品薄片(104)的方法,系统和计算机可读介质,包括将高能量聚焦离子束引向体积体积的材料; 铣削不需要的体积的材料以产生具有一个或多个具有损伤层的暴露面的未完成的样品薄片; 表征聚焦离子束的去除速率; 在表征去除速率之后,将低能量聚焦离子束朝向未完成的样品层引导预定的研磨时间,以从低能量聚焦离子束输送每个面积的特定剂量的离子; 以及用低能量聚焦离子束研磨未完成的样品薄片以去除损伤层(402)的至少一部分,以产生包括感兴趣特征的至少一部分的成品样品薄片(304)。