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    • 32. 发明授权
    • Method of determining stray radiation lithographic projection apparatus
    • 确定杂散放射光刻投影仪的方法
    • US06862076B2
    • 2005-03-01
    • US10684826
    • 2003-10-15
    • Heine Melle MulderMarco Hugo Petrus Moers
    • Heine Melle MulderMarco Hugo Petrus Moers
    • G02B13/00G02B13/18G03F7/20H01L21/027G03B27/32G03B27/52G03B27/54
    • G03F7/70941
    • A system and method for determining the stray radiation condition of a projection system, is presented herein. The invention includes providing a detector with a detector aperture coincident with the image plane of the projection system, measuring a reference parameter in accordance with the projection beam intensity, measuring a stray radiation parameter of an image of an isolated feature and calculating a coefficient representative of the stray radiation condition of the projection system based on the measured stray radiation parameter and the reference parameter. The extent of the detector aperture fits within the extent of a notional shape, which is defined by first scaling down the shape of the feature and subsequently displacing each line element constituting the edge of the scaled down shape, parallel to itself, over a distance of at least λ/NA in a direction perpendicular to that line element.
    • 本文提出了一种用于确定投影系统的杂散辐射条件的系统和方法。 本发明包括提供具有与投影系统的图像平面重合的检测器孔的检测器,根据投影光束强度测量参考参数,测量孤立特征的图像的杂散辐射参数并计算代表 基于测量的杂散辐射参数和参考参数的投影系统的杂散辐射条件。 检测器孔的范围适合于理想形状的范围,其通过首先按比例缩小特征的形状并随后将构成与其自身平行的缩小形状的边缘的每个线元素移位一段距离 在垂直于该线元件的方向上至少为λ/ NA。
    • 34. 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。
    • 38. 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。