METHOD FOR DETERMING A MEASUREMENT RECIPE AND ASSOCIATED APPARATUSES

    公开(公告)号:WO2023025506A1

    公开(公告)日:2023-03-02

    申请号:PCT/EP2022/071212

    申请日:2022-07-28

    Abstract: Disclosed is a method for determining a measurement recipe describing measurement settings for measuring a parameter of interest from a compound structure on a substrate. The method comprises obtaining first training data relating to measurements of reference targets, the targets comprising: a parameter of interest targets, each parameter of interest target having an induced set value which is varied over said parameter of interest targets; and one or more isolated feature targets, each comprising repetitions of one or more features. Second training data is obtained comprising compound structure measurement signals obtained from measurement of one or more instances of said compound structure, One or more machine learning models are trained using said first training data and second training data to infer a value for the parameter of interest from a measurement signal related to said compound structure corrected for a feature asymmetry contribution.

    METHODS USING FINGERPRINT AND EVOLUTION ANALYSIS

    公开(公告)号:WO2019233743A1

    公开(公告)日:2019-12-12

    申请号:PCT/EP2019/062903

    申请日:2019-05-20

    Abstract: The present invention provides a method of determining a sampling control scheme and/or a processing control for substrates processed by a device. The method uses a fingerprint model and an evolution model to generate the control scheme. The fingerprint model is based on fingerprint data for a processing parameter of at least one substrate processed by a device, and the evolution model represents variation of the fingerprint data over time. The fingerprint model and the evolution model are analyzed and a control scheme is generated for the device using the analysis. The sampling control scheme provides an indication for where and when to take measurements on substrates processed by the device. The processing control scheme provides an indication for how to control the processing of the substrate. The present invention also provides a method of determining which of the multiple devices contributed to a fingerprint of a processing parameter.

    METHOD FOR DETERMING A MEASUREMENT RECIPE AND ASSOCIATED APPARATUSES

    公开(公告)号:EP4194952A1

    公开(公告)日:2023-06-14

    申请号:EP21214132.9

    申请日:2021-12-13

    Abstract: Disclosed is a method for determining a measurement recipe describing measurement settings for measuring a parameter of interest from a compound structure on a substrate. The method comprises obtaining first training data relating to measurements of reference targets, the targets comprising: a parameter of interest targets, each parameter of interest target having an induced set value which is varied over said parameter of interest targets; and one or more isolated feature targets, each comprising repetitions of one or more features. Second training data is obtained comprising compound structure measurement signals obtained from measurement of one or more instances of said compound structure, One or more machine learning models are trained using said first training data and second training data to infer a value for the parameter of interest from a measurement signal related to said compound structure corrected for a feature asymmetry contribution.

    GENERATION OF SAMPLING SCHEME
    7.
    发明公开

    公开(公告)号:EP3579051A1

    公开(公告)日:2019-12-11

    申请号:EP18176544.7

    申请日:2018-06-07

    Abstract: The present invention provides a method of determining a sampling scheme for substrates processed by a device. The method uses a fingerprint model and an evolution model to generate the sampling scheme. The fingerprint model is based on fingerprint data for a processing parameter of at least one substrate processed by a device, and the evolution model represents variation of the fingerprint data over time. The fingerprint model and the evolution model are analysed and a sampling scheme is generated for the device using the analysis. The sampling scheme provides an indication for where and when to take measurements on substrates processed by the device.

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