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    • 3. 发明申请
    • Fast method to model photoresist images using focus blur and resist blur
    • 使用聚焦模糊和抵抗模糊来快速模拟光刻胶图像
    • US20070224526A1
    • 2007-09-27
    • US11378536
    • 2006-03-17
    • Timothy BrunnerGregg GallatinRonald GordonKafai LaiAlan RosenbluthNakgeuon Seong
    • Timothy BrunnerGregg GallatinRonald GordonKafai LaiAlan RosenbluthNakgeuon Seong
    • G03C5/00
    • G03F7/70441G03F1/36G03F1/70G03F7/70575
    • A method for determining an image of a patterned object formed by a polychromatic lithographic projection system having a laser radiation source of a finite spectral bandwidth and a lens for imaging the patterned object to an image plane within a resist layer. The method comprises providing patterns for the object, a spectrum of the radiation source to be used in the lithographic projection system, an intensity and polarization distribution of the radiation source, and a lens impulse response in the spatial domain or in the spatial frequency domain of the image. The method then includes forming a polychromatic 4D bilinear vector kernel comprising a partially coherent polychromatic joint response between pairs of points in the spatial domain or in the spatial frequency domain, determining the dominant polychromatic 2D kernels of the polychromatic 4D bilinear vector kernel, and determining the image of the patterned object from convolutions of the object patterns with the dominant polychromatic 2D kernels.
    • 一种用于确定由具有有限光谱带宽的激光辐射源的多色光刻投影系统形成的图案化物体的图像的方法和用于将图案化物体成像到抗蚀剂层内的图像平面的透镜。 该方法包括提供对象的图案,在光刻投影系统中使用的辐射源的光谱,辐射源的强度和偏振分布以及在空间域或空间频域中的透镜脉冲响应 图片。 该方法然后包括形成多色4D双线性矢量核,其包括在空间域或空间频域中的点对之间的部分相干多色联合响应,确定多色4D双线性向量核的显性多色2D内核,并确定 图形对象的图像与目标图案与显性多色2D内核的卷积。
    • 4. 发明申请
    • Focus blur measurement and control method
    • 聚焦模糊测量和控制方法
    • US20070041003A1
    • 2007-02-22
    • US11206326
    • 2005-08-18
    • Christopher AusschnittTimothy BrunnerShahid ButtDaniel Corliss
    • Christopher AusschnittTimothy BrunnerShahid ButtDaniel Corliss
    • G03B27/52
    • G03F7/70641G03F7/70533G03F7/70625
    • A method for optimizing imaging and process parameter settings in a lithographic pattern imaging and processing system. The method includes correlating the dimensions of a first set of at least one control pattern printed in a lithographic resist layer, measured at three or more locations on or within the pattern which correspond to differing dose, defocus and blur sensitivity. The method then includes measuring the dimensions on subsequent sets of control patterns, printed in a lithographic resist layer, at three or more locations on or within each pattern, of which a minimum of three locations match those measured in the first set, and determining the effective dose, defocus and blur values associated with forming the subsequent sets of control patterns by comparing the dimensions at the matching locations with the correlated dependencies.
    • 一种用于优化光刻图案成像和处理系统中的成像和工艺参数设置的方法。 该方法包括将印刷在光刻抗蚀剂层中的至少一个控制图案的第一组的尺寸相关联,在对应于不同剂量,散焦和模糊灵敏度的图案之上或之内的三个或更多个位置处测量。 该方法然后包括测量印刷在光刻抗蚀剂层中的随后的一组控制图案上的尺寸,位于每个图案上或每个图案上的三个或更多个位置,其中最少三个位置与在第一组中测量的位置匹配,并且确定 通过将匹配位置处的尺寸与相关依赖关系进行比较来形成随后的控制模式组相关联的有效剂量,散焦和模糊值。