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    • 7. 发明申请
    • Method and apparatus for vibration detection, method and apparatus for vibration analysis, lithographic apparatus, device manufacturing method, and computer program
    • 用于振动检测的方法和装置,用于振动分析的方法和装置,光刻设备,装置制造方法和计算机程序
    • US20060058972A1
    • 2006-03-16
    • US10941019
    • 2004-09-15
    • Haico KokKoen KivitsRon De LaakHans Kuiper
    • Haico KokKoen KivitsRon De LaakHans Kuiper
    • G01L7/00G01F17/00
    • G03F7/70666G03F7/709G03F9/7096
    • According to one embodiment, a method for determining information relating to vibration includes projecting an aerial image at an image position in a projection plane; mapping an intensity of the aerial image into an image map, the image map arranged for comprising values of coordinates of sampling locations and of the intensity sampled at each sampling location; and measuring intensity of the aerial image received through a slot pattern. Further, the method includes determining from the image map a detection position of a slope portion of the image map; at the detection position of the slope portion, measuring a temporal intensity of the aerial image and relative positions of the slot pattern and the image position, the relative positions of the slot being measured as position-related data of the slot pattern; and determining from the temporal intensity of the aerial image information relating to vibration for said aerial image.
    • 根据一个实施例,一种用于确定与振动有关的信息的方法包括在投影平面中的图像位置投影空中图像; 将所述空间图像的强度映射到图像映射中,所述图像映射被布置为包括采样位置的坐标值和在每个采样位置采样的强度值; 并测量通过狭槽模式接收的空中图像的强度。 此外,该方法包括从图像映射确定图像映射的斜率部分的检测位置; 在斜坡部分的检测位置处,测量空中图像的时间强度和缝隙图案和图像位置的相对位置,测量的时隙的相对位置作为时隙图案的位置相关数据; 并根据与所述航空图像的振动有关的空中图像信息的时间强度来确定。