https://scholars.lib.ntu.edu.tw/handle/123456789/516606
Title: | Band-to-Band-Tunneling Leakage Suppression for Ultra-Thin-Body GeOI MOSFETs Using Transistor Stacking | Authors: | M.-L. Fan P. Su C.-T. Chuang VITA PI-HO HU |
Keywords: | Band-to-band-tunneling leakage; germanium; germanium-on-insulator (GeOI); stacking effect; ultra-thin-body (UTB) | Issue Date: | 2012 | Journal Volume: | 33 | Journal Issue: | 2 | Start page/Pages: | 197-199 | Source: | IEEE Electron Device Letters | Abstract: | This letter indicates that the ultra-thin-body (UTB) germanium-on-insulator (GeOI) MOSFETs preserve the leakage reduction property of stacking devices, while the band-to-band-tunneling leakage of bulk Ge-channel devices cannot be reduced by stacking transistors. The seemingly contradictory behavior of the stack-effect factors is explained by the difference in the flows of band-to-band-tunneling hole fluxes for UTB GeOI and bulk Ge-channel devices and validated by TCAD mixed-mode simulations. At 300 K, the stack-effect factors of UTB GeOI MOSFETs range from 6.8 to 40 (N = 2) and from 12 to 142 (N = 3) at Vdd = 0.5-1V. As the temperature increases or Vdd decreases, the stack-effect factor for UTB GeOI devices decreases, while the stack-effect factor for bulk Ge-channel MOSFETs increases, because the subthreshold leakage current becomes more significant at higher temperature or lower voltage with respect to the band-to-band-tunneling leakage current. © 2011 IEEE. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/516606 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84856287784&doi=10.1109%2fLED.2011.2177955&partnerID=40&md5=6150bd2daefaae928f8d04099da265d3 |
ISSN: | 07413106 | DOI: | 10.1109/led.2011.2177955 | SDG/Keyword: | Germanium-on-insulator; Higher temperatures; Leakage reduction; Leakage suppression; Mixed mode simulation; MOSFETs; Stacking effect; Subthreshold leakage current; Temperature increase; Transistor stacking; Ultra-thin-body; Leakage currents; MOSFET devices; Germanium |
Appears in Collections: | 電機工程學系 |
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