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Growth mechanism and dislocation characterization of silicon carbide epitaxial films

  • Govindhan Dhanaraj
  • , Yi Chen
  • , Hui Chen
  • , William M. Vetter
  • , Hui Zhang
  • , Michae Dudley
  • Stony Brook University

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

6 Scopus citations

Abstract

SiC homo-epitaxial layers were grown in a chemical vapor deposition process using silicon tetrachloride and propane precursors with hydrogen as a carrier gas. Growth rates were found to increase as temperatures increased at high carrier gas flow rate, while at lower carrier gas flow rate growth rates were observed to decrease as temperature increased. Based on the equilibrium model, "thermodynamically controlled growth" accounts for the growth rate reduction. The grown epitaxial layers were characterized using various techniques. Reduction in the threading screw dislocation (SD) density in the epilayers was observed. Suitable models were developed for explaining the reduction in the screw dislocation density as well as the conversion of basal plane dislocations (BPD) into threading edge dislocations (TED).

Original languageEnglish
Title of host publicationSilicon Carbide 2006 - Materials, Processing and Devices
PublisherMaterials Research Society
Pages157-162
Number of pages6
ISBN (Print)1558998721, 9781558998728
DOIs
StatePublished - 2006
Event2006 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 18 2006Apr 20 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume911
ISSN (Print)0272-9172

Conference

Conference2006 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA
Period04/18/0604/20/06

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