Journal
APPLIED PHYSICS EXPRESS
Volume 4, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1143/APEX.4.054202
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- New Energy and Industrial Technology Development Organization
- Ministry of Economy, Trade and Industry, Japan
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We demonstrated the formation of ultrathin-body (UTB) III-V-semiconductor-on-insulator (III-V-OI) n-channel metal-oxide-semiconductor field-effect transistors (nMOSFETs) on Si by low-damage direct wafer bonding, where channel thickness was been reduced to 7 nm. However, we found a significant reduction of the effective mobility of the InGaAs-OI nMOSFETs upon thinning InGaAs channels without surface passivation layers. Instead, we demonstrated the high electron mobility of 1004 cm(2).V-1.s(-1) in a 9-nm-thick InGaAs-OI nMOSFET with an InP surface passivation layer. This finding indicates that the proper surface passivation is important in realizing the high-performance UTB III-V-OI nMOSFETs. (C) 2011 The Japan Society of Applied Physics
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