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Fast lithographic source optimization adopting RMSProp with iterative shrinkage-thresholding algorithm compressive sensing for high fidelity patterning

  • Zhen Li
  • , He Yang
  • , Miao Yuan
  • , Zhaoxuan Li
  • , Yuqing Chen
  • , Yanqiu Li*
  • *Corresponding author for this work
  • Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Fast source optimization (SO) is a critical requirement for the 14-5nm node in integrated lithography online technology. Our previous research introduced Bayesian Compressed Sensing SO (CCS-BCS-SO), which effectively delivered high pattern fidelity.However, its processing speed still lags behind that of compressive sensing (CS) SO. This paper introduces the first application of the iterative shrinkage-thresholding algorithm with RMSProp(RMSProp-ISTA) in compressive sensing. This innovation aims to ensure a high-fidelity pattern while improve convergence speed and accelerating SO. The results indicate that the CCS-RMSProp-ISTA-SO method is three times faster than the CCS-BCS-SO method, achieving the fast SO like CS-SO and the high pattern fidelity of SD-SO.

Original languageEnglish
Title of host publicationEighth International Workshop on Advanced Patterning Solutions, IWAPS 2024
EditorsYayi Wei, Tianchun Ye
PublisherSPIE
ISBN (Electronic)9781510686328
DOIs
Publication statusPublished - 2024
Event8th International Workshop on Advanced Patterning Solutions, IWAPS 2024 - Jiaxing, China
Duration: 15 Oct 202416 Oct 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13423
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference8th International Workshop on Advanced Patterning Solutions, IWAPS 2024
Country/TerritoryChina
CityJiaxing
Period15/10/2416/10/24

Keywords

  • compressive sensing
  • Computational lithography
  • DUV
  • lithographic
  • SO

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