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    ALIGNMENT METHOD
    1.
    发明申请
    ALIGNMENT METHOD 审中-公开

    公开(公告)号：US20190227446A1

    公开(公告)日：2019-07-25

    申请号：US16315100

    申请日：2017-08-14

    Applicant: ASML NETHERLANDS B.V. ,  ASML HOLDING N.V.

    Inventor： Franciscus Godefridus Casper BIJNEN ,  Simon Gijsbert Josephus MATHIJSSEN ,  Vassili DEMERGIS ,  Edo Maria HULSEBOS

    IPC: G03F9/00

    Abstract: A method of determining the position of an alignment mark on a substrate, the alignment mark having first and second segment, the method including illuminating the alignment mark with radiation, detecting radiation diffracted by the alignment mark and generating a resulting alignment signal. The alignment signal has a first component received during illumination of the first segment only, a second component received during illumination of the second segment only, and a third component received during simultaneous illumination of both segments. The positions of the segments are determined using the first component, the second component and the third component of the alignment signal.

    PHASE MODULATORS IN ALIGNMENT TO DECREASE MARK SIZE
    2.
    发明申请
    PHASE MODULATORS IN ALIGNMENT TO DECREASE MARK SIZE 有权

    公开(公告)号：US20220397833A1

    公开(公告)日：2022-12-15

    申请号：US17633884

    申请日：2020-08-05

    Applicant: ASML Netherlands B.V. ,  ASML Holding N.V.

    Inventor： Franciscus Godefridus Casper BIJNEN ,  Muhsin ERALP ,  Simon Reinald HUISMAN ,  Arie Jeffrey DEN BOEF

    IPC: G03F9/00

    Abstract: An alignment apparatus includes an illumination system configured to direct one or more illumination beams towards an alignment target and receive the diffracted beams from the alignment target. The alignment apparatus also includes a self-referencing Interferometer configured to generate two diffraction sub-beams, wherein the two diffraction sub-beams are orthogonally polarized, rotated 180 degrees with respect to each other around an alignment axis, and spatially overlapped. The alignment apparatus further includes a beam analyzer configured to generate interference between the overlapped components of the diffraction sub-beams and produce two orthogonally polarized optical branches, and a detection system configured to determine a position of the alignment target based on light intensity measurement of the optical branches, wherein the measured light intensity is temporally modulated by a phase modulator.

    COMPACT ALIGNMENT SENSOR ARRANGEMENTS
    3.
    发明申请
    COMPACT ALIGNMENT SENSOR ARRANGEMENTS 有权

    公开(公告)号：US20210318627A1

    公开(公告)日：2021-10-14

    申请号：US17271684

    申请日：2019-08-22

    Applicant: ASML Holding N.V. ,  ASML Netherlands B.V.

    Inventor： Tamer Mohamed Tawfik Ahmed Mohamed ELAZHARY ,  Justin Lloyd KREUZER ,  Franciscus Godefridus Casper BIJNEN ,  Krishanu SHOME

    IPC: G03F9/00 ,  G03F7/20

    Abstract: An apparatus and system for determining alignment of a substrate in which a periodic alignment mark is illuminated with spatially coherent radiation which is then provided to a compact integrated optical device to create self images of the alignment mark which may be manipulated (e.g., mirrored, polarized) and combined to obtain information on the position of the mark and distortions within the mark. Also disclosed is a system for determining alignment of a substrate in which a periodic alignment mark is illuminated with spatially coherent radiation which is then provided to an optical fiber arrangement to obtain information such as the position of the mark and distortions within the mark.

    ALIGNMENT METHOD AND ASSOCIATED ALIGNMENT AND LITHOGRAPHIC APPARATUSES
    8.
    发明申请
    ALIGNMENT METHOD AND ASSOCIATED ALIGNMENT AND LITHOGRAPHIC APPARATUSES 有权

    公开(公告)号：US20230004097A1

    公开(公告)日：2023-01-05

    申请号：US17784424

    申请日：2020-11-17

    Applicant: ASML Netherlands B.V.

    Inventor： Franciscus Godefridus Casper BIJNEN ,  Edo Maria HULSEBOS

    IPC: G03F9/00

    Abstract: Disclosed is a substrate, associated patterning device and a method for measuring a position of the substrate. The method comprises performing an alignment scan of an alignment mark to obtain simultaneously: a first measurement signal detected in a first measurement channel and a second measurement signal detected in a second measurement channel. The first and second measurement signals are processed by subtracting a first direction component of the first measurement signal from a first direction component of the second measurement signal to obtain a first processed signal, the first direction components relating to said first direction. The position of an alignment mark is determined with respect to the first direction from the first processed signal.

    Alignment Measurement System, Lithographic Apparatus, and a Method to Determine Alignment of in a Lithographic Apparatus
    9.
    发明申请
    Alignment Measurement System, Lithographic Apparatus, and a Method to Determine Alignment of in a Lithographic Apparatus 有权
    对准测量系统，平版印刷设备和确定平版印刷设备中的对准的方法

    公开(公告)号：US20150261100A1

    公开(公告)日：2015-09-17

    申请号：US14725023

    申请日：2015-05-29

    Applicant: ASML Netherlands B.V.

    Inventor： Franciscus Godefridus Casper BIJNEN ,  David DECKERS ,  Sami MUSA

    IPC: G03F7/20 ,  G01B9/02 ,  G01B11/27

    CPC classification number: G03F7/70141 ,  G01B9/02 ,  G01B11/272 ,  G01D5/344 ,  G03F9/7046 ,  G03F9/7088

    Abstract: An alignment measurement system measures an alignment target on an object. A measurement illuminates the target and is reflected. The reflected measurement beam is split and its parts are differently polarized. A detector receives the reflected measurement beam. A processing unit determines alignment on the basis of the measurement beam received by the detector. An alternative arrangement utilizes an optical dispersive fiber to guide a multi-wavelength measurement beam reflected from the object to a detector.

    Abstract translation: 对准测量系统测量物体上的对准目标。 测量照亮目标并被反射。 反射的测量光束被分离，其部分被不同的极化。 检测器接收反射的测量光束。 处理单元基于由检测器接收的测量波束来确定对准。 一种替代方案是使用光学色散光纤将从物体反射的多波长测量光束引导到检测器。

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