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    • 27. 发明申请
    • Device and method for transmission image detection, lithographic apparatus and mask for use in a lithographic apparatus
    • 用于光刻设备的透射图像检测装置和方法,光刻设备和掩模
    • US20090002656A1
    • 2009-01-01
    • US11819958
    • 2007-06-29
    • Bearrach Moest
    • Bearrach Moest
    • G03B27/52G01V8/10
    • G03F7/70666G03F1/84
    • A device is provided for transmission image detection of an aerial image formed in a lithographic projection apparatus. The device has a structure provided with an object mark, an projection system and a detector. The object mark is arranged to form a object mark pattern upon illumination by radiation with a predetermined wavelength. The projection system is arranged to form an object mark aerial image of the object mark pattern at an image side of the projection system, where the image side has a numerical aperture larger than 1. The detector has a slit pattern and a photo-sensitive device. The slit pattern is positioned in a plane proximate to image plane of the projection system. The device can be configured to satisfy the following condition: d
    • 提供了一种用于在光刻投影设备中形成的空间图像的透射图像检测的装置。 该装置具有设置有物体标记,投影系统和检测器的结构。 对象标记被布置成在通过预定波长的辐射照射时形成对象标记图案。 投影系统被布置成在投影系统的图像侧处形成物体标记图案的物体标记空间图像,其中像侧具有大于1的数值孔径。检测器具有狭缝图案和感光装置 。 狭缝图案位于靠近投影系统的图像平面的平面中。 该设备可以配置为满足以下条件: d 其中d表示在像平面上的物体标记空间图像的关键维度,λ表示预定波长 的辐射,NA表示数值孔径。
        • 28. 发明授权
        • Device and method for transmission image sensing
        • 用于传输图像感测的装置和方法
        • US07675605B2
        • 2010-03-09
        • US12155502
        • 2008-06-05
        • Bearrach Moest
        • Bearrach Moest
        • G03B27/54G03B27/32G03B27/42
        • G03F7/70666G03F1/84
        • A device for transmission image sensing for sensing an aerial image in a lithographic exposure apparatus comprises a projection system arranged to form, at an image side of the projection system, an aerial image of an object mark. The device further comprises a detector comprising a slit pattern having features corresponding to at least a part of the aerial image. The slit pattern is arranged to be exposed to the aerial image. The detector is further being arranged to detect detection radiation transmitted by the slit pattern; wherein d
        • 用于感测平版印刷曝光设备中的空间图像的透射图像感测装置包括投影系统,其布置成在投影系统的像侧形成物体标记的空中图像。 该装置还包括检测器,其包括具有对应于空中图像的至少一部分的特征的狭缝图案。 狭缝图案布置成暴露于空中图像。 检测器还被布置成检测由狭缝图案传输的检测辐射; 其中d <0.85·λNA,其中d表示狭缝图案的最小特征的尺寸,λ表示检测辐射的预期波长,并且大于1的NA表示图像侧的数值孔径。
        • 29. 发明申请
        • Reduction of fit error due to non-uniform sample distribution
        • 减少由于不均匀样本分布引起的拟合误差
        • US20070258074A1
        • 2007-11-08
        • US11418464
        • 2006-05-05
        • Bearrach Moest
        • Bearrach Moest
        • G03B27/52
        • G03F9/7011G03F9/7092
        • A weighted fit based on a sample density of a plurality of samples is used to determine an alignment curve. A scan that produces the samples may include portions having greater and lesser sample density. While performing an interpolation to produce a best fit curve, a plurality of neighboring samples are chosen for each sample point, for sample points associated with a value above a threshold. A weighting function may be performed based on a distance between a given sample and the chosen nearest neighbors, wherein measurements that are taken in a region with denser samples are given less weight than measurements that are taken in a region with sparser samples.
        • 使用基于多个样本的样本密度的加权拟合来确定对准曲线。 产生样品的扫描可以包括具有更大和更小样品密度的部分。 在执行插值以产生最佳拟合曲线时,对于与高于阈值的值相关联的采样点,针对每个采样点选择多个相邻采样。 可以基于给定样本与所选择的最近邻居之间的距离来执行加权函数,其中在具有更密集样本的区域中进行的测量的权重小于在具有较稀疏样本的区域中进行的度量。