Patent ID: 11947266
Assignee: ASML NETHERLANDS B.V.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. A computer program product comprising a non-transitory computer-readable medium having instructions therein, the instructions, when executed by one or more computers, configured to cause the one or more computers to at least:
obtain training data comprising a training set of pre-exposure metrology data for a lithographic process, and obtaining a corresponding training set of post processing metrology data relating to a performance metric of the lithographic process;
process the training data to obtain processed pre-exposure metrology data comprising one or more components of the pre-exposure metrology data which correlate to the performance metric; and
train the at least one model for determining a correction relating to the performance metric of the lithographic process, with the processed training data.