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    • 1. 发明授权
    • X-ray system
    • X光系统
    • US06606371B2
    • 2003-08-12
    • US09745236
    • 2000-12-19
    • Michael AntonellErik Cho HougeJohn Martin McIntoshLarry E. PlewCatherine Vartuli
    • Michael AntonellErik Cho HougeJohn Martin McIntoshLarry E. PlewCatherine Vartuli
    • G21K106
    • G21K1/06G21K2201/062G21K2201/064G21K2201/067
    • A reflective lens with at least one curved surface formed of polycrystalline material. In one embodiment, a lens structure includes a substrate having a surface of predetermined curvature and a film formed along a surface of the substrate with multiple individual members each having at least one similar orientation relative to the portion of the substrate surface adjacent the member such that collectively the members provide predictable angles for diffraction of x-rays generated from a common source. A system is also provided for performing an operation with x-rays. In one embodiment, a system includes a source for generating the x-rays, a polycrystalline surface region having crystal spacing suitable for reflecting a plurality of x-rays at the same Bragg angle along the region, and transmitting the reflected x-rays to a reference position. An associated method includes providing x-rays to polycrystalline surface region having crystal spacings suitable for reflecting a plurality of x-rays at the same Bragg angle along the region, transmitting the reflected x-rays to a reference position and positioning a sample between the surface region and the reference position so that the x-rays are transmitted through the sample.
    • 具有由多晶材料形成的至少一个曲面的反射透镜。 在一个实施例中,透镜结构包括具有预定曲率的表面的基底和沿着基底的表面形成的膜,多个单独的构件各自具有相对于邻近构件的基底表面的部分的至少一个相似的取向,使得 共同地,这些构件为从公共源产生的x射线的衍射提供可预测的角度。 还提供了一种用于使用X射线进行操作的系统。 在一个实施例中,系统包括用于产生x射线的源,具有适合于沿着该区域以相同的布拉格角反射多个x射线的晶体间距的多晶表面区域,以及将反射的x射线透射到 参考位置。 相关联的方法包括向具有晶体间距的多晶表面区域提供x射线,该晶体间距适于沿着该区域以相同的布拉格角反射多个x射线,将反射的x射线透射到参考位置,并将样品定位在表面 区域和参考位置,使得x射线透射通过样品。
    • 5. 发明授权
    • Three dimensional reconstruction metrology
    • 三维重建计量学
    • US06714892B2
    • 2004-03-30
    • US09967119
    • 2001-09-28
    • Erik Cho HougeJohn Martin McIntoshLarry E. Plew
    • Erik Cho HougeJohn Martin McIntoshLarry E. Plew
    • G06F1500
    • G03F7/70491G03F7/70625Y10S977/852
    • A system and method of metrology (10) whereby a three dimensional shape profile is defined (16) for a surface feature on a substrate by applying (38) a transform function F(x) to an image intensity map I(x,y) obtained (40) by inspecting the substrate with a scanning electron microscope (12). The transform function F(x) is developed (34) by correlating the image intensity map of a first wafer (18) to a height vector (32) obtained by inspecting the first wafer with a more accurate metrology tool, for example a stylus nanoprofilometer (14). A simple ratio-based transform may be used to develop F(x). An asymmetric multiple parameter characterization of the three dimensional shape profile may be developed (74) by plotting critical space and width dimensions (SL, SR, W1, WR) from a vertical axis (C—C) as a function of height of the feature.
    • 一种计量系统和方法(10),其中通过将变换函数F(x)应用于图像强度图I(x,y)(38)来定义(16)用于衬底上的表面特征的三维形状轮廓, 通过用扫描电子显微镜(12)检查基板得到(40)。 通过将第一晶片(18)的图像强度图与通过用更精确的计量工具检查第一晶片获得的高度矢量(32)相关联来开发变换函数F(x),例如,触笔纳米玻璃体计 (14)。 可以使用简单的基于比例的变换来开发F(x)。 可以通过从垂直轴(C-C)绘制关键空间和宽度尺寸(SL,SR,W1,WR)作为特征的高度的函数来开发三维形状轮廓的不对称多参数表征(74)。