Design an Extreme Ultraviolet Illumination System with High Uniformity

Yanqiu Li*, Qian Hao, Ke Liu, Xu Yan

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper, an illumination system matching an NA 0.33 projection objective is designed. The assignment of field facets and pupil facets under different illumination modes are obtained by the method based on combinatorial optimization. Results show that this illumination system can achieve high uniformity on the mask under different illumination modes. Key words: Extreme Ultraviolet Lithography, Illumination System.

Original languageEnglish
Pages (from-to)114-116
Number of pages3
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume11851
Publication statusPublished - 2021
Event10th Laser Display and Lighting Conference, LDC 2021 - Virtual, Online
Duration: 19 Apr 202122 Apr 2021

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