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    • 2. 发明授权
    • Evaluation mask, focus measuring method and aberration measuring method
    • 评估面膜,聚焦测量方法和像差测量方法
    • US06940585B2
    • 2005-09-06
    • US10657251
    • 2003-09-09
    • Hiroshi NomuraKenji Konomi
    • Hiroshi NomuraKenji Konomi
    • G01B11/00G01M11/02G03F1/44G03F7/20G03F7/207H01L21/027G03B27/52G03B27/32G03B25/42
    • G03F7/706G03F7/70641
    • An evaluation mask for evaluating a projection-type exposure apparatus, the mask including at least one diffraction grating pattern for producing a diffracted light of the positive first-order and a diffracted light of negative first-order, diffraction efficiencies of the diffracted lights being different respectively, one of the diffracted lights having a magnitude that is zero, and an image of the at least one diffraction grating pattern being projected onto a test substrate by the projection-type exposure apparatus, and a reference pattern for obtaining a reference image to measure a displacement of the image of the diffraction grating pattern, and an image of the reference pattern being projected onto the test substrate or the image detector by the projection-type exposure apparatus, wherein the images of the diffraction grating pattern and the reference pattern projected onto the test substrate or the image detector are used for evaluating the projection-type exposure apparatus.
    • 用于评估投影型曝光装置的评估掩模,所述掩模包括至少一个用于产生正一级的衍射光的衍射光栅图案和负一级的衍射光,衍射光的衍射效率不同 分别具有大小为零的衍射光中的一个,并且通过投影型曝光装置将至少一个衍射光栅图案的图像投影到测试基板上,以及用于获得用于测量的参考图像的参考图案 衍射光栅图案的图像的位移和通过投影型曝光装置投影到测试基板或图像检测器上的参考图案的图像,其中衍射光栅图案和参考图案的图像投影到 使用测试基板或图像检测器来评估投影型曝光装置。
    • 3. 发明授权
    • Evaluation mask, focus measuring method and aberration measuring method
    • 评估面膜,聚焦测量方法和像差测量方法
    • US06674511B2
    • 2004-01-06
    • US09923443
    • 2001-08-08
    • Hiroshi NomuraKenji Konomi
    • Hiroshi NomuraKenji Konomi
    • G03B2752
    • G03F7/706G03F7/70641
    • An evaluation mask for evaluating a projection-type exposure apparatus, the mask including at least one diffraction grating pattern for producing a diffracted light of the positive first-order and a diffracted light of negative first-order, diffraction efficiencies of the diffracted lights being different respectively, one of the diffracted lights having a magnitude that is zero, and an image of the at least one diffraction grating pattern being projected onto a test substrate by the projection-type exposure apparatus, and a reference pattern for obtaining a reference image to measure a displacement of the image of the diffraction grating pattern, and an image of the reference pattern being projected onto the test substrate or the image detector by the projection-type exposure apparatus, wherein the images of the diffraction grating pattern and the reference pattern projected onto the test substrate or the image detector are used for evaluating the projection-type exposure apparatus.
    • 用于评估投影型曝光装置的评估掩模,所述掩模包括至少一个用于产生正一级的衍射光的衍射光栅图案和负一级的衍射光,衍射光的衍射效率不同 分别具有大小为零的衍射光中的一个,并且通过投影型曝光装置将至少一个衍射光栅图案的图像投影到测试基板上,以及用于获得用于测量的参考图像的参考图案 衍射光栅图案的图像的位移和通过投影型曝光装置投影到测试基板或图像检测器上的参考图案的图像,其中衍射光栅图案和参考图案的图像投影到 使用测试基板或图像检测器来评估投影型曝光装置。