Optical metrology of 3D thin film conformality by LHAR chip assisted method

Mikko Utriainen, Kimmo Saastamoinen, Heikki Rekola, Oili M.E. Ylivaara, Riikka L. Puurunen, Pasi Hyttinen

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

7 Citations (Scopus)
107 Downloads (Pure)

Abstract

The paper presents a novel and fast method to characterize thin film conformality on microscopic 3D High Aspect Ratio substrates. The thin film deposition experiment uses specially designed PillarHall(TM) Lateral High Aspect Ratio (LHAR) silicon chip as a substrate. The measurement on a chip relies on the conventional planar surface characterization tools such as optical microscopy, line-scan reflectometry and ellipsometry. The results show that the method is fast and accurate way to characterize thin film conformality as well as other film properties, and also in wafer-level.

Original languageEnglish
Title of host publicationPhotonic Instrumentation Engineering IX
EditorsLynda E. Busse, Yakov Soskind, Patrick C. Mock
PublisherSPIE
ISBN (Print)978-1-5106-4887-6
DOIs
Publication statusPublished - 5 Mar 2022
MoE publication typeA4 Conference publication
EventSPIE Photonics West - San Francisco, United States
Duration: 22 Jan 202227 Jan 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12008
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSPIE Photonics West
Country/TerritoryUnited States
CitySan Francisco
Period22/01/202227/01/2022

Keywords

  • ALD
  • Conformal
  • High Aspect Ratio
  • LHAR

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