Electron trapping in buried oxides formed by oxygen implantation

  • P. K. Hurley
  • , L. J. McDaid
  • , S. Hall
  • , W. Eccleston
  • , J. C. Alderman

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

Previous work has demonstrated how the capacitance/voltage characteristics of the SOI (silicon-on-insulator) structure can be used to interpret the effect of Fowler-Nordheim stressing of the buried oxide. The authors extend the previous work by reporting the effects of avalanche injection of electrons into the buried oxide. As the average electric fields in the oxide are low during avalanche injection (typically <3 MV/cm), the technique permits the characterization of intrinsic electron traps. The experiments were performed on SOI capacitor structures produced by oxygen implantation at 200 keV and an equivalent dose of 1.8 × 1018 O+cm-2. The variation of the flatband voltage in the body and the substrate for an electron injection current density of 1.5 × 10-6 A/cm2 is shown. Two trapping centers with capture cross-sections of 8 × 10-15 cm2 and 1 × 10-16 cm2, with densities of 5 × 1011 and 1 × 1012, respectively, are revealed.

Original languageEnglish
Title of host publication1991 IEEE International SOI Conference Proceedings
PublisherPubl by IEEE
Pages6-7
Number of pages2
ISBN (Print)0780301846
Publication statusPublished - 1992
Event1991 IEEE International SOI Conference - Vail Valley, CO, USA
Duration: 1 Oct 19913 Oct 1991

Publication series

Name1991 IEEE International SOI Conference Proceedings

Conference

Conference1991 IEEE International SOI Conference
CityVail Valley, CO, USA
Period1/10/913/10/91

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