Test pattern, inspection method, and device manufacturing method
    3.
    发明授权
    Test pattern, inspection method, and device manufacturing method 有权
    测试模式,检验方法和器件制造方法

    公开(公告)号:US07312860B2

    公开(公告)日:2007-12-25

    申请号:US11594075

    申请日:2006-11-08

    IPC分类号: G01B9/00

    CPC分类号: G03F7/706

    摘要: In a method according to one embodiment of the invention, aberrations in a lithographic apparatus are detected by printing a test pattern having at least one degree of symmetry and being sensitive to a particular aberration in the apparatus, and using a scatterometer to derive information concerning the aberration. The test structure may comprise a two-bar grating, in which case the inner and outer duty ratios can be reconstructed to derive information indicative of comatic aberration. Alternatively, a hexagonal array of dots can be used, such that scatterometry data can be used to reconstruct dot diameters indicative of 3-wave aberration.

    摘要翻译: 在根据本发明的一个实施例的方法中,通过印刷具有至少一个对称度并对装置中的特定像差敏感的测试图案来检测光刻设备中的像差,并且使用散射仪来得到关于 像差 测试结构可以包括双杆格栅,在这种情况下,可以重建内部和外部占空比以导出指示彗形像差的信息。 或者,可以使用六边形点阵列,使得散射测量数据可以用于重建指示3波像差的点直径。

    Test pattern, inspection method, and device manufacturing method
    6.
    发明授权
    Test pattern, inspection method, and device manufacturing method 有权
    测试模式,检验方法和器件制造方法

    公开(公告)号:US07151594B2

    公开(公告)日:2006-12-19

    申请号:US10696742

    申请日:2003-10-30

    IPC分类号: G01B9/00

    CPC分类号: G03F7/706

    摘要: In a method according to one embodiment of the invention, aberrations in a lithographic apparatus are detected by printing a test pattern having at least one degree of symmetry and being sensitive to a particular aberration in the apparatus, and using a scatterometer to derive information concerning the aberration. The test structure may comprise a two-bar grating, in which case the inner and outer duty ratios can be reconstructed to derive information indicative of comatic aberration. Alternatively, a hexagonal array of dots can be used, such that scatterometry data can be used to reconstruct dot diameters indicative of 3-wave aberration.

    摘要翻译: 在根据本发明的一个实施例的方法中,通过印刷具有至少一个对称度并对装置中的特定像差敏感的测试图案来检测光刻设备中的像差,并且使用散射仪来得到关于 像差 测试结构可以包括双杆格栅,在这种情况下,可以重建内部和外部占空比以导出指示彗形像差的信息。 或者,可以使用六边形点阵列,使得散射测量数据可以用于重建指示3波像差的点直径。

    Lithographic apparatus and device manufacturing method
    8.
    发明申请
    Lithographic apparatus and device manufacturing method 失效
    平版印刷设备和器件制造方法

    公开(公告)号:US20070115449A1

    公开(公告)日:2007-05-24

    申请号:US11636586

    申请日:2006-12-11

    IPC分类号: G03B27/80

    摘要: A lithographic apparatus includes a device having a blade selectively insertable into the beam. The device is in a first plane intermediate a second plane conjugate to a plane of the substrate and a third plane conjugate to a pupil plane of the projection system. The blade may include a partially opaque blade and a solid blade or have a predetermined transmissibility pattern. The transmissibility may vary in a second direction perpendicular to the first direction in which the substrate and the patterning device are movable. In an illumination system including a field faceted mirror and a pupil faceted mirror, a reflecting blade is selectively insertable into the beam to reflect a portion of the beam to a beam dump that may be cooled to reduce a heat load. The reflecting element may have a coating that scatters the portion of radiation or changes the phase.

    摘要翻译: 光刻设备包括具有可选择性地插入光束中的刀片的装置。 该装置处于第一平面中间,与第二平面共轭于基板平面,第三平面与投影系统的光瞳平面共轭。 刀片可以包括部分不透明的刀片和固体刀片,或者具有预定的传递性图案。 透射率可以在垂直于衬底和图案形成装置可移动的第一方向的第二方向上变化。 在包括场分面镜和瞳孔刻面镜的照明系统中,反射片可选择性地插入光束中,以将光束的一部分反射到可以被冷却以减少热负荷的光束倾倒。 反射元件可以具有散射辐射部分或改变相位的涂层。