SYSTEMS AND METHODS FOR REDUCING PATTERN SHIFT IN A LITHOGRAPHIC APPARATUS
Described herein is a method for improving imaging of a feature on a mask to a substrate during scanning operation of a lithographic apparatus. The method includes obtaining a dynamic pupil representing evolution of an angular distribution of radiation exposing a mask during a scanning operation of...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
14.06.2023
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Subjects | |
Online Access | Get full text |
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Summary: | Described herein is a method for improving imaging of a feature on a mask to a substrate during scanning operation of a lithographic apparatus. The method includes obtaining a dynamic pupil representing evolution of an angular distribution of radiation exposing a mask during a scanning operation of a lithographic apparatus and determining A variation of shift of a feature at a substrate during the scanning operation due to interaction of the dynamic pupil with the mask. The method includes configuring at least one of a mask parameter or a control parameter of the lithographic apparatus to reduce the variation of shift of the feature. |
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Bibliography: | Application Number: EP20210213192 |