Presentation 2005-08-18
Experimental Study on the Mobility Superiority in (110)-oriented Ultra-thin Body pMOSFETs
Gen TSUTSUI, Masumi SAITOH, Toshiro HIRAMOTO,
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Abstract(in English) Ultra-thin body (UTB) SOI MOSFET is one of the most promising structures for future VLSIs because of its high short channel effect immunity. Mobility in UTB pMOSFETs in conventional (100) substrate has been experimentally investigated, and severe mobility degradation has been observed as tsor is reduced below 5nm. In this study, hole mobility in (110)-oriented UTB pMOSFETs is investigated. It is shown that the mobility, which is much higher than that in the universal curve in conventional (100)-oriented pMOSFET, is not degraded until tsor is thinned to 3nm. The high mobility in the UTB regime in (110) pMOSFET is attributed to subband modulation by carrier confinement and heavier hole effective mass normal to channel surface.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) (110) / hole mobility / phonon scattering / quantum confinement effect / SOI thickness fluctuation induced scattering / ultra-thin body SOI MOSFET
Paper # SDM2005-133,ICD2005-72
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Conference Information
Committee SDM
Conference Date 2005/8/11(1days)
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Registration To Silicon Device and Materials (SDM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Experimental Study on the Mobility Superiority in (110)-oriented Ultra-thin Body pMOSFETs
Sub Title (in English)
Keyword(1) (110)
Keyword(2) hole mobility
Keyword(3) phonon scattering
Keyword(4) quantum confinement effect
Keyword(5) SOI thickness fluctuation induced scattering
Keyword(6) ultra-thin body SOI MOSFET
1st Author's Name Gen TSUTSUI
1st Author's Affiliation Institute of Industrial Science, University of Tokyo()
2nd Author's Name Masumi SAITOH
2nd Author's Affiliation Institute of Industrial Science, University of Tokyo
3rd Author's Name Toshiro HIRAMOTO
3rd Author's Affiliation Institute of Industrial Science, University of Tokyo
Date 2005-08-18
Paper # SDM2005-133,ICD2005-72
Volume (vol) vol.105
Number (no) 232
Page pp.pp.-
#Pages 6
Date of Issue