Electrical properties of high-k LaLuO3 gate oxide for SOI MOSFETs

  • Y. Y. Gomeniuk
  • , Y. V. Gomeniuk
  • , A. N. Nazarov
  • , P. K. Hurley
  • , K. Cherkaoui
  • , S. Monaghan
  • , P. E. Hellström
  • , H. D.B. Gottlob
  • , J. Schubert
  • , J. M.J. Lopes

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

Abstract

The paper presents the results of electrical characterization of MOS capacitors and SOI MOSFETs with novel high-? LaLuO3 dielectric as a gate oxide. The energy distribution of interface state density at LaLuO 3/Si interface is presented and typical maxima of 1.2×10 11 eV-1cm-2 was found at about 0.25 eV from the silicon valence band. The output and transfer characteristics of the n- and p-MOSFET (channel length and width were 1 μm and 50 μm, respectively) are presented. The front channel mobility appeared to be 126 cm2V -1s-1 and 70 cm2V-1s-1 for n- and p-MOSFET, respectively. The front channel threshold voltages as well as the density of states at the back interface are presented.

Original languageEnglish
Title of host publicationNanoscaled Semiconductor-on-Insulator Materials, Sensors and Devices
Pages87-93
Number of pages7
DOIs
Publication statusPublished - 2011
Event6th International Workshop on Semiconductor-on-Insulator Materials and Devices - Kyiv, Ukraine
Duration: 24 Oct 201028 Oct 2010

Publication series

NameAdvanced Materials Research
Volume276
ISSN (Print)1022-6680

Conference

Conference6th International Workshop on Semiconductor-on-Insulator Materials and Devices
Country/TerritoryUkraine
CityKyiv
Period24/10/1028/10/10

Keywords

  • Channel mobility
  • High-k oxide
  • Interface states density
  • LaLuO
  • Lanthanum lutetium oxide
  • Molecular beam deposition MBD
  • MOSFET
  • SOI
  • Threshold voltage
  • Transconductance

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