Lithographic scanning exposure projection apparatus
    51.
    发明授权
    Lithographic scanning exposure projection apparatus 失效
    平版印刷曝光投影装置

    公开(公告)号:US5986742A

    公开(公告)日:1999-11-16

    申请号:US824625

    申请日:1997-03-27

    CPC classification number: G03F7/70058 G03F7/70358 G03F7/70558 G03F7/70808

    Abstract: A lithographic scanning exposure projection apparatus is provided with a radiation source (1) providing radiation pulses, a lens system (3, 7), a mask (5), imaged onto a substrate (9) and scanning apparatus (10) for scanning an image of an exit window (2) of the radiation source at a scanning speed over the substrate (9). A controller (13) controls both the energy of the radiation pulses and the scanning speed in dependence on the required exposure dose on the substrate and the repetition rate of the radiation pulses. The controller ensures maximum throughput of substrates through the apparatus and a minimum dose non-uniformity on the substrates.

    Abstract translation: 平版印刷扫描曝光投影设备设置有提供辐射脉冲的辐射源(1),成像在基板(9)上的透镜系统(7,7),掩模(5)和扫描装置(10) 在基板(9)上的扫描速度的辐射源的出射窗(2)的图像。 控制器(13)根据衬底上所需的曝光剂量和辐射脉冲的重复率来控制辐射脉冲的能量和扫描速度两者。 控制器确保通过设备的基板的最大吞吐量和基板上的最小剂量不均匀性。

    Inspection apparatus for lithography
    53.
    发明授权
    Inspection apparatus for lithography 有权
    光刻检验装置

    公开(公告)号:US08792096B2

    公开(公告)日:2014-07-29

    申请号:US12922587

    申请日:2009-03-24

    Abstract: Four separately polarized beams are simultaneously measured upon diffraction from a substrate (W) to determine properties of the substrate. Linearly, circularly or elliptically polarized radiation is transmitted through a first beam splitter (N-PBS) and split into two polarized beams. These two beams are further split into two further beams using two further beam splitters, the further beam splitters (32,34) being rotated by 45° with respect to each other. The plurality of polarizing beam splitters enables the measurement of the intensity of all four beams and thus the measurement of the phase modulation and amplitude of the combined beams to give the features of the substrate. Algorithms are used to compare the four intensities of each of the polarized angles to give rise to the phase difference between the polarization directions and the ratio between the two main polarization direction amplitudes of the original polarized beam.

    Abstract translation: 在从基底(W)衍射时同时测量四个分离的偏振光束,以确定基底的性质。 线性,圆形或椭圆偏振辐射通过第一分束器(N-PBS)传输并分裂成两个偏振光束。 使用两个另外的分束器将这两个光束进一步分成两个另外的光束,另外的光束分离器(32,34)相对于彼此旋转45°。 多个偏振分束器能够测量所有四个光束的强度,从而测量组合光束的相位调制和振幅,以给出衬底的特征。 算法用于比较每个偏振角的四个强度,以产生偏振方向之间的相位差和原始偏振光束的两个主偏振方向幅度之间的比率。

    DETERMINING A STRUCTURAL PARAMETER AND CORRECTING AN ASYMMETRY PROPERTY
    54.
    发明申请
    DETERMINING A STRUCTURAL PARAMETER AND CORRECTING AN ASYMMETRY PROPERTY 有权
    确定结构参数并校正不对称性

    公开(公告)号:US20130308142A1

    公开(公告)日:2013-11-21

    申请号:US13891410

    申请日:2013-05-10

    CPC classification number: G01B11/24 G01B11/02 G03F7/70616 G03F7/70633

    Abstract: A method of determining a structural parameter related to process-induced asymmetry, the method including: illuminating a structure, having an asymmetry property and a sub-structure susceptible to process-induced asymmetry, with radiation with a plurality of illumination conditions, at a first location of a substrate, determining a difference between measured asymmetry properties of the structure obtained with each of the plurality of illumination conditions, calculating a differential dependence of a difference between modeled asymmetry properties simulated for illumination by each of the plurality of illumination conditions on a structural parameter representing process-induced asymmetry of the sub-structure, and determining a value of the structural parameter using the determined difference and the calculated differential dependence.

    Abstract translation: 一种确定与过程引起的不对称相关的结构参数的方法,所述方法包括:首先用具有多个照明条件的辐射照射具有对过程引起的不对称性不敏感的特征和子结构的结构 确定衬底的位置,确定用多个照明条件中的每一个获得的结构的测量不对称性之间的差异,计算针对结构上的多个照明条件中的每一个模拟的用于照明的建模不对称性之间的差的差分依赖性 表示子结构的过程引起的不对称的参数,以及使用所确定的差和所计算的微分依赖性来确定结构参数的值。

    Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method
    58.
    发明授权
    Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method 有权
    检测方法和装置,光刻设备,光刻处理单元和器件制造方法

    公开(公告)号:US07839506B2

    公开(公告)日:2010-11-23

    申请号:US12718599

    申请日:2010-03-05

    Abstract: The simultaneous measurement of four separately polarized beams upon diffraction from a substrate is used to determine properties of the substrate. Circularly or elliptically polarized light sources are passed via up to three polarizing elements. This polarizes the light sources by 0, 45, 90 and 135°. The plurality of polarizing beamsplitters replaces the use of a phase modulator, but enables the measurement of the intensity of all four beams and thus the measurement of the phase modulation and amplitude of the combined beams to give the features of the substrate.

    Abstract translation: 使用从衬底衍射的同时测量四个分离的偏振光束来确定衬底的性质。 圆形或椭圆偏振光源最多通过三个偏振元件。 这使光源偏振0°,45°,90°和135°。 多个偏振分束器取代了相位调制器的使用,但是能够测量所有四个光束的强度,从而测量组合光束的相位调制和幅度,以给出基板的特征。

    Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method
    60.
    发明申请
    Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method 有权
    检测方法和装置,光刻设备,光刻处理单元和器件制造方法

    公开(公告)号:US20080198380A1

    公开(公告)日:2008-08-21

    申请号:US11708678

    申请日:2007-02-21

    Abstract: The present invention refers to the simultaneous measurement of four separately polarized beams upon diffraction from a substrate in order to determine properties of the substrate. Circularly or elliptically polarized light sources are passed via up to three polarizing elements. This polarizes the light sources by 0, 45, 90 and 135°. The plurality of polarizing beam splitters replaces the use of a phase modulator, but enables the measurement of the intensity of all four beams and thus the measurement of the phase modulation and amplitude of the combined beams to give the features of the substrate.

    Abstract translation: 本发明涉及从衬底衍射时同时测量四个分离的偏振光束,以便确定衬底的性质。 圆形或椭圆偏振光源最多通过三个偏振元件。 这使光源偏振0°,45°,90°和135°。 多个偏振分束器取代了相位调制器的使用,但是能够测量所有四个光束的强度,从而测量组合光束的相位调制和振幅,以给出基板的特征。

Patent Agency Ranking