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    • 33. 发明授权
    • Radiometric Kirk test
    • 辐射Kirk测试
    • US08059266B2
    • 2011-11-15
    • US12236050
    • 2008-09-23
    • David A. HultHeine Melle MulderMinne Cuperus
    • David A. HultHeine Melle MulderMinne Cuperus
    • G01J1/00G03B27/42G03B27/32
    • G01J1/04G01J1/0437G03B27/42G03F7/7085G03F7/70941
    • Systems and methods for measuring stray light in a lithographic apparatus are described using Radiometric Kirk Test (also known as Scanning SAMOS Test). The Radiometric Kirk Test of the present invention involves a test pattern having an isolated dark area within a much larger bright field. The radiometric Kirk test includes at least two continuous or stepped scans of an aperture of a detector in an image plane of a lithographic system. During a dark area measurement, the aperture of the detector is positioned such that at least at one point the aperture of the detector is centered within an image of the dark area. During a bright area measurement, the aperture of the detector is positioned within the image of the bright field. The integrated detector signal is correspondingly computed for the dark area measurement and the bright area measurement. The ratio of the integrated dark area measurement result and integrated bright area measurement result is a measure of stray light present in the lithographic apparatus.
    • 使用辐射式Kirk测试(也称为扫描SAMOS测试)描述光刻设备中测量杂散光的系统和方法。 本发明的辐射Kirk测试涉及在更大的明亮场内具有孤立暗区的测试图案。 辐射Kirk测试包括在光刻系统的图像平面中的检测器的孔的至少两次连续或阶梯式扫描。 在黑暗区域测量期间,检测器的孔径被定位成使得至少在一个点处,探测器的孔径在黑暗区域的图像内居中。 在亮区测量中,探测器的孔径位于明场的图像内。 对于暗区测量和亮区测量,相应地计算积分检测器信号。 积分暗区测量结果与集成亮区测量结果的比值是光刻设备中存在的杂散光的量度。
    • 37. 发明申请
    • Radiometric Kirk Test
    • 辐射Kirk测试
    • US20090086179A1
    • 2009-04-02
    • US12236050
    • 2008-09-23
    • David A. HultHeine Melle MulderMinne Cuperus
    • David A. HultHeine Melle MulderMinne Cuperus
    • G01J1/00G03B27/42
    • G01J1/04G01J1/0437G03B27/42G03F7/7085G03F7/70941
    • Systems and methods for measuring stray light in a lithographic apparatus are described using Radiometric Kirk Test (also known as Scanning SAMOS Test). The Radiometric Kirk Test of the present invention involves a test pattern having an isolated dark area within a much larger bright field. The radiometric Kirk test includes at least two continuous or stepped scans of an aperture of a detector in an image plane of a lithographic system. During a dark area measurement, the aperture of the detector is positioned such that at least at one point the aperture of the detector is centered within an image of the dark area. During a bright area measurement, the aperture of the detector is positioned within the image of the bright field. The integrated detector signal is correspondingly computed for the dark area measurement and the bright area measurement. The ratio of the integrated dark area measurement result and integrated bright area measurement result is a measure of stray light present in the lithographic apparatus.
    • 使用辐射式Kirk测试(也称为扫描SAMOS测试)描述光刻设备中测量杂散光的系统和方法。 本发明的辐射Kirk测试涉及在更大的明亮场内具有孤立暗区的测试图案。 辐射Kirk测试包括在光刻系统的图像平面中的检测器的孔的至少两次连续或阶梯式扫描。 在黑暗区域测量期间,检测器的孔径被定位成使得至少在一个点处,探测器的孔径在黑暗区域的图像内居中。 在亮区测量中,探测器的孔径位于明场的图像内。 对于暗区测量和亮区测量,相应地计算积分检测器信号。 积分暗区测量结果与集成亮区测量结果的比值是光刻设备中存在的杂散光的量度。