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J. Semicond. > 2008, Volume 29?>?Issue 5?> 944-949

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A Transition Region Study of SiO2/4H-SiC Interface by ADXPS

Wang Dejun, Zhao Liang, Zhu Qiaozhi, Ma Jikai, Chen Suhua and Wang Haibo

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Abstract: This article reports on the study of the transition region of a SiO2/4H-SiC interface prepared by dry oxidation using ADXPS.The study contains interface composition,component distribution and so on.We prepared the samples with oxidation thicknesses between 1nm and 1.5nm based on controlling the speed that the dilute HF acid etches SiO2 grown on SiC.The standard samples were adopted to assist in analysis.The results indicate that the SiO2/4H-SiC interface simultaneously contains Si1+,Si2+,and Si3+.The ADXPS results suggest a layered model is suitable for describing the component distribution.An atom-level model of the transition region was established and the thickness of oxidation was calculated.The change of the transition components quantum and C-Vcurve indicate that the transition components directly affect the density interface trap.

Key words: SiO2/SiC interface,  4H-SiC, ADXPS,  interface state density, defect

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    Received: 18 August 2015 Revised: 26 November 2007 Online: Published: 01 May 2008

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      Wang Dejun, Zhao Liang, Zhu Qiaozhi, Ma Jikai, Chen Suhua, Wang Haibo. A Transition Region Study of SiO2/4H-SiC Interface by ADXPS[J]. Journal of Semiconductors, 2008, 29(5): 944-949. ****Wang D J, Zhao L, Zhu Q Z, Ma J K, Chen S H, Wang H B. A Transition Region Study of SiO2/4H-SiC Interface by ADXPS[J]. J. Semicond., 2008, 29(5): 944.
      Citation:
      Wang Dejun, Zhao Liang, Zhu Qiaozhi, Ma Jikai, Chen Suhua, Wang Haibo. A Transition Region Study of SiO2/4H-SiC Interface by ADXPS[J]. Journal of Semiconductors, 2008, 29(5): 944-949. ****
      Wang D J, Zhao L, Zhu Q Z, Ma J K, Chen S H, Wang H B. A Transition Region Study of SiO2/4H-SiC Interface by ADXPS[J]. J. Semicond., 2008, 29(5): 944.

      A Transition Region Study of SiO2/4H-SiC Interface by ADXPS

      • School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116024,China

      • School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116024,China

      • School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116024,China

      • School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116024,China

      • School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116024,China

      • School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116024,China

      • Received Date: 2015-08-18
      • Accepted Date: 2007-10-08
      • Revised Date: 2007-11-26
      • Published Date: 2008-05-05

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