TID and displacement damage effects in vertical and lateral power MOSFETs for integrated DC-DC converters

  • F. Faccio
  • , B. Allongue
  • , G. Blanchot
  • , C. Fuentes
  • , S. Michelis
  • , S. Orlandi
  • , R. Sorge

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

13 Scopus citations

Abstract

TID and displacement damage effects are studied for vertical and lateral power MOSFETs in five different technologies in view of the development of radiation-tolerant fully integrated DC-DC converters. Investigation is pushed to the very high level of radiation expected for an upgrade to the LHC experiments. TID induces threshold voltage shifts and, in n-channel transistors, source-drain leakage currents. Wide variability in the magnitude of these effects is observed. Displacement damage increases the on-resistance of both vertical and lateral high-voltage transistors. In the latter case, degradation at high particle fluence might lead to a distortion of the output characteristics curve. HBD techniques to limit or eliminate the radiation-induced leakage currents are successfully applied to these high-voltage transistors, but have to be used carefully to avoid consequences on the breakdown voltage.

Original languageEnglish
Title of host publication2009 European Conference on Radiation and Its Effects on Components and Systems
Subtitle of host publication10th RADECS Conference, RADECS 2009
Pages46-53
Number of pages8
DOIs
StatePublished - 2009
Externally publishedYes
Event2009 10th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2009 - Bruges, Belgium
Duration: 14 Sep 200918 Sep 2009

Publication series

NameProceedings of the European Conference on Radiation and its Effects on Components and Systems, RADECS

Conference

Conference2009 10th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2009
Country/TerritoryBelgium
CityBruges
Period14/09/0918/09/09

Keywords

  • DC-DC converter
  • LDMOS
  • displacement damage
  • radiation effects

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