Low defect ultra-thin fully strained-Ge MOSFET on relaxed Si with high mobility and low Band-To-Band-Tunneling (BTBT)

Tejas Krishnamohan, Zoran Krivokapic, Ken Uchida, Yoshio Nishi, Krishna C. Saraswat

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

50 Citations (Scopus)

Abstract

For the first time, the tradeoffs between higher mobility (smaller bandgap) channel and lower Band-To-Band-Tunneling (BTBT) leakage have been investigated through detailed experiments and simulations. The resulting optimal structure obtained was an ultra-thin, low defect, 2nm fully strained Ge epi channel on relaxed Si, with a 4nm Si cap layer. The fabricated device shows very high mobility enhancements >3.5X over bulk Si devices, 2X mobility enhancement and >10X BTBT reduction over 4nm strained Ge and surface channel 50% strained SiGe devices.

Original languageEnglish
Title of host publication2005 Symposium on VLSI Technology, Digest of Technical Papers
Pages82-83
Number of pages2
DOIs
Publication statusPublished - 2005
Externally publishedYes
Event2005 Symposium on VLSI Technology - Kyoto, Japan
Duration: 2005 Jun 142005 Jun 14

Publication series

NameDigest of Technical Papers - Symposium on VLSI Technology
Volume2005
ISSN (Print)0743-1562

Other

Other2005 Symposium on VLSI Technology
Country/TerritoryJapan
CityKyoto
Period05/6/1405/6/14

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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