AIP Advances (Jun 2015)

Si and C emission into the oxide layer during the oxidation of silicon carbide and its influence on the oxidation rate

  • Yasuto Hijikata,
  • Ryosuke Asafuji,
  • Ryotaro Konno,
  • Yurie Akasaka,
  • Ryo Shinoda

DOI
https://doi.org/10.1063/1.4922536
Journal volume & issue
Vol. 5, no. 6
pp. 067128 – 067128-7

Abstract

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Si and C emission into the oxide layer during the oxidation of silicon carbide and SiO2 growth on the oxide surface were experimentally confirmed from depth profiles of oxidized HfO2/SiC structures. With longer oxidation times, surface SiO2 growth transitioned to oxide/SiC interface growth. The influence of Si and C emission on the oxidation rate was investigated by real-time measurements of the oxide growth rate. Experimental observations of annealing-inserted oxidation and two-temperature oxidation indicated that the emission suppressed the oxidation rate.