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MOSFETs on self-assembled SiGe dots with strain-enhanced mobility

  • V. Jovanović*
  • , C. Biasotto
  • , L. K. Nanver
  • , J. Moers
  • , D. Grützmacher
  • , J. Gerharz
  • , G. Mussler
  • , J. Van Der Cingel
  • , J. Zhang
  • , G. Bauer
  • , O. G. Schmidt
  • , L. Miglio
  • *Corresponding author for this work

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

Abstract

Silicon-germanium dots grown in the Stranski-Krastanow mode are investigated as sources of strain for electron mobility enhancement in the silicon capping layer. N-channel MOSFETs with the channel in the Si cap-layer over the SiGe dot (DotFETs) are fabricated in a custom-made process and have an average increase in drain current of up to 22.5% compared to the reference devices. The sources of device variations related to the dimensions of the main gate-segment are identified and their influence on device performance evaluated, confirming the mobility enhancement.

Original languageEnglish
Title of host publicationICSICT-2010 - 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology, Proceedings
Pages926-928
Number of pages3
DOIs
Publication statusPublished - 1 Dec 2010
Externally publishedYes
Event10th IEEE International Conference on Solid-State and Integrated Circuit Technology 2010 - Shanghai, China
Duration: 1 Nov 20104 Nov 2010
Conference number: 10

Conference

Conference10th IEEE International Conference on Solid-State and Integrated Circuit Technology 2010
Country/TerritoryChina
CityShanghai
Period1/11/104/11/10

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