Asml Netherlands B.v.

Stanislas Hugo Louis Baron

Yu Long Cao

Jing Su

Ya Luo

Jun Tao

Training methods and a mask correction method. One of the methods is for training a machine learning model configured to predict a post optical proximity correction (OPC) image for a mask. The method involves obtaining (i) a pre-OPC image associated with a design layout to be printed on a substrate, (ii) an image of one or more assist features for the mask associated with the design layout, and (iii) a reference post-OPC image of the design layout; and training the machine learning model using the pre-OPC image and the image of the one or more assist features as input such that a difference between the reference image and a predicted post-OPC image of the machine learning model is reduced.

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San Jose, CA, United States of America

Stanislas Hugo Louis Baron