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Feedback and tunneling operations of a p(+)-i-n(+) silicon nanowire field-effect transistor

Authors
Kim, YoonjoongLim, DoohyeokCho, JinsunKim, Sangsig
Issue Date
26-10월-2018
Publisher
IOP PUBLISHING LTD
Keywords
silicon nanowires; field-effect transistor; subthreshold swing; band-to-band tunneling; feedback loop
Citation
NANOTECHNOLOGY, v.29, no.43
Indexed
SCIE
SCOPUS
Journal Title
NANOTECHNOLOGY
Volume
29
Number
43
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/72438
DOI
10.1088/1361-6528/aad9df
ISSN
0957-4484
Abstract
In this paper, we describe the feedback and tunneling operations of a dual top gate field-effect transistor (FET) with a p(+)-i-n(+) doped silicon nanowire channel. The transistor functions selectively in either a feedback FET (FBFET) or a tunneling FET mode by modulating the source-to-drain voltage, and it features an outstanding subthreshold swing characteristic of 6.15 mV dec(-1) with an on/off current ratio (I-on/I-off) of approximately 10(6) in the feedback operating mode and of 41.3 mV dec(-1) with I-on/I-off of similar to 10(7) in the tunneling operating mode. Moreover, our device in the FBFET operation mode has memory characteristics with a retention time of 10(4) s and a program/erase endurance up to 10(3) cycles owing to the positive feedback loop in the channel region. This study demonstrates the promising potential of our devices in the development of multifunctional electronics.
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공과대학 (전기전자공학부)
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