Large-scale freeform surface ultra-thin film coating uniformity measurement based on a dynamic spectroscopic ellipsometer

  • Daesuk Kim*
  • , Vamara Dembele
  • *Corresponding author for this work

Research output: Contribution to conferenceConference paperpeer-review

Abstract

We describe a novel dynamic spectroscopic ellipsometer and its advanced imaging spectro-ellipsometric scheme based on one-piece polarizing interferometric module. The proposed dynamic spectroscopic ellipsometer requires neither moving parts nor time dependent polarization modulation for extracting spectroscopic ellipsometric parameters. By employing a snapshot single spectral data, we reconstruct spatially resolved spectral ellipsometric information of ultrathin films coated on a freeform surface with high precision and accuracy. The dynamic measurement capability of the proposed imaging spectro-ellipsometer is demonstrated for large-scale periodic nano-patterns fabricated on roll surface.

Original languageEnglish
Title of host publicationOptifab 2019
EditorsBlair L. Unger, Jessica DeGroote Nelson
PublisherSPIE
ISBN (Electronic)9781510630635
DOIs
StatePublished - 2019
EventOptifab 2019 - Rochester, United States
Duration: 2019.10.142019.10.17

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11175
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptifab 2019
Country/TerritoryUnited States
CityRochester
Period19.10.1419.10.17

Keywords

  • Dynamic
  • Large-Scale
  • Spectroscopic ellipsometry
  • Uniformity evaluation

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Computer Science & Information Systems
  • Mathematics
  • Engineering - Electrical & Electronic
  • Engineering - Petroleum
  • Data Science
  • Physics & Astronomy

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