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    • 16. 发明授权
    • Double side polished wafer scratch inspection tool
    • 双面抛光晶圆划痕检测工具
    • US07319518B2
    • 2008-01-15
    • US11211061
    • 2005-08-24
    • Robert Tyler LeonardJason Ronald Jenny
    • Robert Tyler LeonardJason Ronald Jenny
    • G01N21/00
    • G01N21/9501G01N21/47G01N2021/8864
    • The invention is a method of inspecting a semiconductor wafer surface for scratches. The method includes positioning a semiconductor wafer for illumination by a radiation source and adjacent a background material that will absorb radiation from the radiation source, directing radiation at a surface of the wafer from the radiation source that has a wavelength that will be absorbed by the fundamental absorption of the wafer, filtering or otherwise limiting the radiation to allow only radiation having wavelengths that are absorbed by the fundamental absorption of the wafer to pass, and detecting radiation scattered on the surface of the wafer and filtered, by position, to thereby identify the location of the scratches on the surface of the wafer, while the absorption of the background material prevents other radiation from the source from interfering with the detection of the scratch-scattered radiation.
    • 本发明是检查半导体晶片表面以划伤的方法。 该方法包括将辐射源定位用于照明的半导体晶片,并且邻近将吸收来自辐射源的辐射的背景材料,从晶片的表面引导辐射,该辐射源具有将被基底部分吸收的波长的辐射源 吸收晶片,过滤或以其他方式限制辐射,以允许仅具有被晶片的基本吸收所吸收的波长的辐射通过,并且检测散射在晶片表面上并通过位置过滤的辐射,从而识别 在晶片表面上划痕的位置,而背景材料的吸收防止来自源的其它辐射干扰了划痕辐射的检测。