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    • 9. 发明申请
    • PATTERN MEASURING METHOD, PATTERN MEASURING APPARATUS, AND PROGRAM USING SAME
    • 图案测量方法,图案测量装置和使用其的程序
    • US20130216121A1
    • 2013-08-22
    • US13882147
    • 2011-10-14
    • Fumihiro SasajimaYoshihiro Kimura
    • Fumihiro SasajimaYoshihiro Kimura
    • G06K9/00
    • G06K9/00523G03F7/70625H01J37/28H01J2237/24578H01J2237/24592H01J2237/2817H01L22/12H01L2924/0002H01L2924/00
    • In measuring pattern with large process fluctuation, correct measurement cannot be carried out if noises, such as pattern that is not the subject to be measured, and dirt, are present in periphery of pattern to be measured in previously registered measurement region. Among the image data of sample, predetermined region aligned by pattern matching is set as region not to be measured that is excluded from subjects of pattern measurement. For example, in measuring pattern with large process fluctuation, only region including pattern with small process fluctuation is used in pattern matching, while in measuring the pattern, predetermined region, which was used in pattern matching and aligned, is set as region not to be measured. Stable pattern measurement can be easily carried out with respect to pattern with large process fluctuation, without being affected by region where measurement region and region not to be measured overlap with each other.
    • 在具有大的工艺波动的测量图形中,如果在先前记录的测量区域中的要测量的图案的周围存在噪声,例如不被测量的图案和污物,则不能进行正确的测量。 在样本的图像数据中,通过图案匹配对准的预定区域被设置为从图案测量对象排除的不被测量的区域。 例如,在具有大的工艺波动的测量图案中,在图案匹配中仅使用包括具有小的工艺波动的图案的区域,而在测量图案时,在图案匹配和对准中使用的预定区域被设置为不是 测量。 相对于具有大的工艺波动的图案,可以容易地进行稳定的图案测量,而不受测量区域和不被测量的区域彼此重叠的区域的影响。