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Analysis of dislocations in PVT-grown 6H-SiC through grazing-incidence X-ray topographic images and ray-tracing simulation

  • Q. Cheng
  • , T. Ailihumaer
  • , H. Peng
  • , Y. Liu
  • , B. Raghothamachar
  • , M. Dudley
  • Stony Brook University

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

1 Scopus citations

Abstract

The superior electronic and physical properties of silicon carbide (SiC) enabled successful applications in electronic and optoelectronic applications. Therefore, understanding the nature and behavior of different dislocations is of great significance towards crystal quality enhancement and device degradation prevention. In this study, synchrotron monochromatic beam X-ray topography (SMBXT) analysis was carried out on a PVT-grown 6H-SiC wafer for recording its grazing-incidence images of all six different 1 1 2- 12 reflections. The distribution of TSDs, TEDs, TMDs and BPDs has been observed on topographic images, and characterized through correlation with ray-tracing simulation. The conjunction of topographic and simulated images in this study has successfully accomplished a direct Burgers vectors determination approach for each type of dislocations, which can provide crucial information for quality improvement of crystal.

Original languageEnglish
Title of host publicationPRiME 2020
Subtitle of host publicationJoint Symposium: State-of-the-Art Program on Compound Semiconductors 63 (SOTAPOCS 63) -and- GaN and SiC Power Technologies 10
EditorsT. Anderson, J. K. Hite, R. P. Lynch, C. O'Dwyer, E. A. Douglas, Y. Zhao, M. Dudley, B. Raghothamachar, M. Bakowski, N. Ohtani
PublisherIOP Publishing Ltd
Pages133-145
Number of pages13
Edition6
ISBN (Electronic)9781607689010
DOIs
StatePublished - 2020
EventPacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200 - Honolulu, United States
Duration: Oct 4 2020Oct 9 2020

Publication series

NameECS Transactions
Number6
Volume98
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferencePacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200
Country/TerritoryUnited States
CityHonolulu
Period10/4/2010/9/20

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