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III-V/Ge channel engineering for future CMOS

  • M. A. Wistey
  • , U. Singisetti
  • , G. J. Burek
  • , E. Kim
  • , B. J. Thibeault
  • , A. Nelson
  • , J. Cagnon
  • , Y. J. Lee
  • , S. R. Bank
  • , S. Stemmer
  • , P. C. McIntyre
  • , A. C. Gossard
  • , M. J.W. Rodwell
  • University of California at Santa Barbara
  • Stanford University
  • Intel
  • University of Texas at Austin

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

6 Scopus citations

Abstract

As silicon CMOS reaches its scaling limits, alternative materials become more attractive. Dielectric thickness and parasitic resistance and capacitance do not scale well, so "more than Moore" scaling is required even to keep up with Moore's Law. Replacing Si MOSFET channels on a short time scale (3-6 years) raises significant challenges for any proposed material or device structure. New materials must be compatible with Si CMOS fabrication. In 1-XGaXAs based MOSFETs offer higher carrier velocities than Si, plus contact resistivities below 10-8Ω-cm2, mature processing, and straightforward heterostructure confinement for vertical scaling, and additional degrees of freedom in composition and heterostructure for future scaling. Self-aligned source-drain regrowth places contact metal within 30nm of the channel, reducing access resistance. Here we demonstrate InGaAs channels with self-aligned regrowth of source/drain contacts. This work led to depletion mode InGaAs MOSFETs with peak transconductance of 0.24 mS/μm.

Original languageEnglish
Title of host publicationECS Transactions - Graphene and Emerging Materials for Post-CMOS Applications
PublisherElectrochemical Society Inc.
Pages361-372
Number of pages12
Edition5
ISBN (Electronic)9781607680635
ISBN (Print)9781566777131
DOIs
StatePublished - 2009
Event1st International Symposium on Emerging Materials for Post-CMOS Applications - 215th Meeting of the Electrochemical Society - San Francisco, CA, United States
Duration: May 25 2009May 29 2009

Publication series

NameECS Transactions
Number5
Volume19
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference1st International Symposium on Emerging Materials for Post-CMOS Applications - 215th Meeting of the Electrochemical Society
Country/TerritoryUnited States
CitySan Francisco, CA
Period05/25/0905/29/09

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