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    • 6. 发明公开
    • MULTIPLE ANGLES OF INCIDENCE SEMICONDUCTOR METROLOGY SYSTEMS AND METHODS
    • 麻疯病基因食品
    • EP3047520A1
    • 2016-07-27
    • EP14843577.9
    • 2014-09-15
    • Kla-Tencor Corporation
    • WANG, David Y.FLOCK, KlausROTTER, Lawrence D.KRISHNAN, ShankarDE VEER, Johannes D.FILIP, CatalinBRADY, GregoryARAIN, MuzammilSHCHEGROV, Andrei
    • H01L21/66
    • An apparatus includes (i) a bright light source for providing an illumination beam at multiple wavelengths selectable with a range from a deep ultraviolet wavelength to an infrared wavelength, (ii) illumination optics for directing the illumination beam towards a sample at selectable sets of angles of incidence (AOI's) or azimuth angles (AZ's) and polarization states to provide spectroscopic ellipsometry, wherein the illumination optics include an apodizer for controlling a spot size of the illumination beam on the sample at each of the selectable AOI/AZ sets, (iii) collection optics for directing an output beam from the sample in response to the illumination beam at each of the selectable AOI/AZ sets and polarization states towards a detector that generates an output signal or image based on the output beam, and (v) a controller for characterizing a feature of the sample based on the output signal or image.
    • 一种装置包括(i)用于提供在从深紫外线波长到红外波长的范围内可选择的多个波长的照明光束的明亮光源,(ii)照明光学器件,用于将照明光束以可选择的角度集合 (AOI)或方位角(AZ)和极化状态以提供光谱椭偏仪,其中照明光学器件包括用于控制每个可选AOI / AZ组上样品上的照明光束的光斑尺寸的变迹器,(iii )收集光学器件,用于响应于在每个可选择的AOI / AZ集合处的照明光束和来自基于输出光束产生输出信号或图像的检测器的偏振态引导来自样品的输出光束,以及(v) 控制器,用于基于输出信号或图像来表征样本的特征。