SECONDARY ELECTRON SPECTROSCOPY METHOD AND SYSTEM
    2.
    发明公开
    SECONDARY ELECTRON SPECTROSCOPY METHOD AND SYSTEM 审中-公开
    方法和系统进行二次电子能谱

    公开(公告)号:EP1179217A1

    公开(公告)日:2002-02-13

    申请号:EP00932327.0

    申请日:2000-05-12

    摘要: A system and a method for fast characterization of sample's material composition, which is especially beneficial for semiconductor fabrication. The material composition is characterized by analyzing secondary electrons emission from the sample. According to one feature, electron detector is used to collect secondary electrons emanating from the sample. The detector is controlled to collect a specific narrow band of secondary electrons, and the band is controlled to allow for collection of SE at different energies. Two modes are disclosed: spot mode and secondary electron spectroscopy material imaging (SESMI). In the spot mode, a spectrum of SE is obtained from a single spot on the sample, and its characteristics are investigated to obtain information of the material composition of the spot. In the SESMI mode, an SEM image of an area on the sample is obtained. The SE spectrum at each pixel is investigated and correlated to a particular spectrum group. The image is then coded according to the SE spectrum grouping. The coding is preferably a color coding.

    Single potential ion source
    6.
    发明公开
    Single potential ion source 失效
    Einfach-Potential Ionenquelle

    公开(公告)号:EP0827179A1

    公开(公告)日:1998-03-04

    申请号:EP96306329.2

    申请日:1996-08-30

    IPC分类号: H01J27/14 H01J49/12 H01J41/04

    摘要: A single potential ion source 50 includes a single conical electrode 58 encircled by a cylindrical magnet 60. At least one filament 56 is placed proximate to the electrode. This arrangement serves to accelerate electrons created by energy from the filament toward a centre axis 59 of the conical electrode. The electrons collide with gas particles to create a focussed ion stream. The stream may be directed into a magnetic field in a mass spectrometer tube. A base 52 supports pins 54 for electrical connections to the electrode 58 and filaments 56.

    摘要翻译: 单个电势离子源50包括由圆柱形磁体60包围的单个圆锥形电极58.至少一个细丝56靠近电极放置。 这种布置用于将由能量产生的电子加速到锥形电极的中心轴线59。 电子与气体颗粒碰撞以产生聚焦的离子流。 流可以被引导到质谱管中的磁场中。 基座52支撑用于电连接到电极58和细丝56的销54