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Self-aligned graphene-on-SiC and graphene-on-Si MOSFETs on 75 mm wafers

  • J. S. Moon
  • , D. Curtis
  • , M. Hu
  • , S. Bui
  • , D. Wheeler
  • , T. Marshall
  • , H. Sharifi
  • , D. Wong
  • , D. K. Gaskilt
  • , P. M. Campbel
  • , P. Asbeck
  • , G. Jemigan
  • , J. Tedesco
  • , B. VanMil
  • , R. Myersward
  • , C. Eddy
  • , X. Weng
  • , J. Robinson
  • , M. Fanton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Graphene has shown the highest carrier Hall mobility of> 100,000 cm 2/Vs with theoretical saturation velocity (V sat) and source-injection velocity converging at ∼5E7 cm/sec [1] and ∼6E7 cm/sec, respectively. A potential combination of high current-carrying density, transconductance, and low access resistance could make graphene an attractive candidate for high-performance RF applications. So far, epitaxial graphene MOSFETs [2] in the early stages of development have revealed technical challenges: the currentvoltage characteristics are quasi-linear with weak saturation behaviors and low transconductance per gate capacitance <100 mS/mm). In addition, the lon/loff ratio has been <10. While epitaxial graphene RF FETs with Fmax of 14 GHz per 2 μm gate length were demonstrated in a self-aligned top-gated layout with the highest ever on-state current density of 3 A/mm at V ds = 5 V, field-effect mobility was limited below 200 cm2/Vs. There are only a few reports of a graphene-on-Si platform with on-stage current <0.02 mA/mm. [3].

Original languageEnglish (US)
Title of host publication68th Device Research Conference, DRC 2010
Pages209-210
Number of pages2
DOIs
StatePublished - 2010
Event68th Device Research Conference, DRC 2010 - Notre Dame, IN, United States
Duration: Jun 21 2010Jun 23 2010

Publication series

NameDevice Research Conference - Conference Digest, DRC
ISSN (Print)1548-3770

Other

Other68th Device Research Conference, DRC 2010
Country/TerritoryUnited States
CityNotre Dame, IN
Period6/21/106/23/10

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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