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    • 3. 发明申请
    • METHOD FOR A LITHOGRAPHIC APPARATUS
    • 一种平面设备的方法
    • US20100123887A1
    • 2010-05-20
    • US12617855
    • 2009-11-13
    • Laurentius Cornelius DE WINTERJozef Maria Finders
    • Laurentius Cornelius DE WINTERJozef Maria Finders
    • G03B27/52
    • G03F7/70641G03F7/70125G03F7/70308G03F7/70591G03F7/70891
    • A method is described that includes illuminating a patterning device pattern with a radiation beam having a symmetric illumination mode, the patterning device pattern comprising a first pattern feature that substantially diffracts radiation of the radiation beam, and a second pattern feature that does not substantially diffract radiation of the radiation beam, introducing an asymmetry, relative to an optical axis, in the substantially diffracted radiation using a phase modulation element, illuminating a radiation beam receiving element with radiation emanating from the phase modulation element to form a receiving element pattern that is related to the patterning device pattern, the receiving element pattern having first and second receiving element pattern features related to the first and second pattern features respectively, and determining information at least indicative of a focal property from positional information regarding the relative positions of the first and second receiving element pattern features.
    • 描述了一种方法,其包括用具有对称照明模式的辐射束照射图案形成装置图案,图案形成装置图案包括基本上衍射辐射束的辐射的第一图案特征,以及基本上不辐射辐射的第二图案特征 使用相位调制元件在基本上衍射的辐射中引入相对于光轴的不对称性,用相位调制元件发射的辐射照射辐射束接收元件,以形成与 图案形成装置图案,接收元件图案具有分别与第一和第二图案特征相关的第一和第二接收元件图案特征,以及根据关于第一和第二图案特征的相对位置的位置信息来确定至少指示焦点特性的信息 g元素图案特征。
    • 4. 发明申请
    • DEVICE MANUFACTURING METHOD AND LITHOGRAPHIC APPARATUS
    • 设备制造方法和平面设备
    • US20100265479A1
    • 2010-10-21
    • US12760247
    • 2010-04-14
    • Laurentius Cornelius DE WINTERJozef Maria Finders
    • Laurentius Cornelius DE WINTERJozef Maria Finders
    • G03B27/42G03F7/20
    • G03F7/70308G03F7/70258G03F7/70266G03F7/70283
    • A mask can be used to print a pattern. Due to mask pattern surface topography, an image error may occur, such as an intensity imbalance between adjacent bright lines in the projected pattern. To help alleviate or eliminate the problem of intensity imbalance, the projection system may include an optical phase adjuster constructed and arranged to adjust a phase of an electric field of optical beams of radiation beam traversing the adjuster. A reduction of intensity imbalance is achieved by suitably adjusting the phases of the zeroth, plus first and minus first-order diffracted radiation emanating from the mask pattern. By adjusting the phase differently for different portions of the illumination, the method can be applied such that no decrease of depth of focus due, for example, the 0th order is occurring.
    • 可以使用掩码打印图案。 由于掩模图案表面形貌,可能会出现图像错误,例如投影图案中相邻亮线之间的强度不平衡。 为了帮助减轻或消除强度不平衡的问题,投影系统可以包括光学相位调节器,其被构造和布置成调节穿过调节器的辐射束的光束的电场的相位。 强度不平衡的减少是通过适当地调整第零阶相加加掩模图形发出的第一和第一级衍射辐射来实现的。 通过对照明的不同部分不同地调整相位,可以应用该方法,使得不会发生例如第0次的焦点的降低。