Vertical Gate-All-Around Nanowire GaSb-InAs Core-Shell n-Type Tunnel FETs
(2019) In Scientific Reports 9(1).- Abstract
Tunneling Field-Effect Transistors (TFET) are one of the most promising candidates for future low-power CMOS applications including mobile and Internet of Things (IoT) products. A vertical gate-all-around (VGAA) architecture with a core shell (C-S) structure is the leading contender to meet CMOS footprint requirements while simultaneously delivering high current drive for high performance specifications and subthreshold swing below the Boltzmann limit for low power operation. In this work, VGAA nanowire GaSb/InAs C-S TFETs are demonstrated experimentally for the first time with key device properties of subthreshold swing S = 40 mV/dec (Vd = 10 mV) and current drive up to 40 μA/wire (Vd = 0.3 V, diameter d = 50 nm)... (More)
Tunneling Field-Effect Transistors (TFET) are one of the most promising candidates for future low-power CMOS applications including mobile and Internet of Things (IoT) products. A vertical gate-all-around (VGAA) architecture with a core shell (C-S) structure is the leading contender to meet CMOS footprint requirements while simultaneously delivering high current drive for high performance specifications and subthreshold swing below the Boltzmann limit for low power operation. In this work, VGAA nanowire GaSb/InAs C-S TFETs are demonstrated experimentally for the first time with key device properties of subthreshold swing S = 40 mV/dec (Vd = 10 mV) and current drive up to 40 μA/wire (Vd = 0.3 V, diameter d = 50 nm) while dimensions including core diameter d, shell thickness and gate length are scaled towards CMOS requirements. The experimental data in conjunction with TCAD modeling reveal interface trap density requirements to reach industry standard off-current specifications.
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- author
- Vasen, T. ; Ramvall, P. LU ; Afzalian, A. ; Doornbos, G. ; Holland, M. ; Thelander, C. LU ; Dick, K. A. LU ; Wernersson, L. E. LU and Passlack, M.
- organization
- publishing date
- 2019-01-17
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Scientific Reports
- volume
- 9
- issue
- 1
- article number
- 202
- publisher
- Nature Publishing Group
- external identifiers
-
- scopus:85060140819
- pmid:30655575
- ISSN
- 2045-2322
- DOI
- 10.1038/s41598-018-36549-z
- language
- English
- LU publication?
- yes
- id
- 66fcfd0e-b1ac-44df-af6a-b2327e9ca8bc
- date added to LUP
- 2019-01-28 14:44:37
- date last changed
- 2024-09-03 11:09:07
@article{66fcfd0e-b1ac-44df-af6a-b2327e9ca8bc, abstract = {{<p>Tunneling Field-Effect Transistors (TFET) are one of the most promising candidates for future low-power CMOS applications including mobile and Internet of Things (IoT) products. A vertical gate-all-around (VGAA) architecture with a core shell (C-S) structure is the leading contender to meet CMOS footprint requirements while simultaneously delivering high current drive for high performance specifications and subthreshold swing below the Boltzmann limit for low power operation. In this work, VGAA nanowire GaSb/InAs C-S TFETs are demonstrated experimentally for the first time with key device properties of subthreshold swing S = 40 mV/dec (V<sub>d</sub> = 10 mV) and current drive up to 40 μA/wire (V<sub>d</sub> = 0.3 V, diameter d = 50 nm) while dimensions including core diameter d, shell thickness and gate length are scaled towards CMOS requirements. The experimental data in conjunction with TCAD modeling reveal interface trap density requirements to reach industry standard off-current specifications.</p>}}, author = {{Vasen, T. and Ramvall, P. and Afzalian, A. and Doornbos, G. and Holland, M. and Thelander, C. and Dick, K. A. and Wernersson, L. E. and Passlack, M.}}, issn = {{2045-2322}}, language = {{eng}}, month = {{01}}, number = {{1}}, publisher = {{Nature Publishing Group}}, series = {{Scientific Reports}}, title = {{Vertical Gate-All-Around Nanowire GaSb-InAs Core-Shell n-Type Tunnel FETs}}, url = {{http://dx.doi.org/10.1038/s41598-018-36549-z}}, doi = {{10.1038/s41598-018-36549-z}}, volume = {{9}}, year = {{2019}}, }