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Towards the fabrication of ultra-thin SOI on Si (001) using epitaxial oxide and epitaxial semiconductor growth processes

  • Daniel J. Lichtenwalner
  • , Jennifer M. Hydrick
  • , Viera Vankova
  • , Veena Misra
  • , Jon Paul Maria
  • , Angus I. Kingon

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

Abstract

Silicon on insulator (SOI) substrates will be required to reduce capacitive coupling and other parasitic effects as device scaling continues. ITRS projections point to a future need for SOI buried oxide layers as thin as 10 nm, and Si channel thickness potentially as low as 5 nm for fully-depleted ultra-thin-body devices. For such thin layers, conventional SOI fabrication processes become increasingly difficult. Progress towards fabricating ultra-thin SOI on Si(001) through an all-growth approach is presented. All steps are performed sequentially in situ, with no wet chemical processing. Starting with a Si wafer as large as 8", our approach is to: 1) deposit a thin commensurate epitaxial oxide layer such as Ca1-xSr xTiO3; 2) oxidize to grow an interface SiO2: layer ('floating' the epitaxial oxide) for stress relief and lowering of the dielectric constant; and 3) deposit epitaxial Si or Si1-xGe x to complete the fabrication process. copyright The Electrochemical Society.

Original languageEnglish (US)
Title of host publicationPhysics and Technology of High-k Gate Dielectrics 4
PublisherElectrochemical Society Inc.
Pages449-460
Number of pages12
Edition3
ISBN (Electronic)1566775035
DOIs
StatePublished - 2006
EventPhysics and Technology of High-k Gate Dielectrics 4 - 210th Electrochemical Society Meeting - Cancun, Mexico
Duration: Oct 29 2006Nov 3 2006

Publication series

NameECS Transactions
Number3
Volume3
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherPhysics and Technology of High-k Gate Dielectrics 4 - 210th Electrochemical Society Meeting
Country/TerritoryMexico
CityCancun
Period10/29/0611/3/06

All Science Journal Classification (ASJC) codes

  • General Engineering

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