METROLOGY METHOD FOR MEASURING AN EXPOSED PATTERN AND ASSOCIATED METROLOGY APPARATUS

    公开(公告)号:US20240264081A1

    公开(公告)日:2024-08-08

    申请号:US18640249

    申请日:2024-04-19

    Inventor: Jeroen COTTAAR

    CPC classification number: G01N21/4738 G01N21/9501

    Abstract: Disclosed is a method for performing a measurement of an exposed pattern in photoresist on a substrate and an associated metrology device. The method comprises imparting a beam of measurement radiation on said exposed pattern over a measurement area of a size which prevents or mitigates photoresist damage from the measurement radiation; capturing scattered radiation comprising said measurement radiation subsequent to it having been scattered from said exposed pattern and detecting the scattered radiation on at least one detector. A value for a parameter of interest is determined from the scattered radiation.

    METROLOGY METHOD AND APPARATUS
    67.
    发明公开

    公开(公告)号:US20240231247A1

    公开(公告)日:2024-07-11

    申请号:US18413910

    申请日:2024-01-16

    CPC classification number: G03F9/7088 G03F9/7046

    Abstract: Disclosed is a method for measuring alignment on an alignment mark, and associated apparatuses. The method comprises illuminating the alignment mark with illumination comprising at least one wavelength; capturing the scattered radiation scattered from the alignment mark as a result of said illumination step, and determining at least one position value for said alignment mark from an angularly resolved representation of said scattered radiation, wherein said alignment mark, or a feature thereof, is smaller than said at least one wavelength in at least one dimension of a substrate plane.

    Method for monitoring lithographic apparatus

    公开(公告)号:US12032297B2

    公开(公告)日:2024-07-09

    申请号:US17291513

    申请日:2019-10-15

    CPC classification number: G03F7/705 G05B13/042

    Abstract: A method of determining a parameter of a lithographic apparatus, wherein the method includes providing first height variation data of a first substrate, providing first performance data of a first substrate, and determining a model based on the first height variation data and the first performance data. The method further includes obtaining second height variation data of a second substrate, inputting the second height variation data to the model, and determining second performance data of the second substrate by running the model. Based on the second performance data, the method determines a parameter of the apparatus.

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