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Park, Kibog
Emergent Materials & Devices Lab.
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Edge-over MOSFET with poly-Si thin film channel for achieving thermodynamic limit of subthreshold swing in nanometer scale

Author(s)
Lee, Jung-YongJung, SungchulKim, JunhyungPark, Kibog
Issued Date
2019-09
DOI
10.1088/1361-6641/ab3134
URI
https://scholarworks.unist.ac.kr/handle/201301/30372
Fulltext
https://iopscience.iop.org/article/10.1088/1361-6641/ab3134
Citation
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, v.34, no.9, pp.095014
Abstract
We propose a new device structure of poly-silicon thin film channel metal-oxide-semiconductor field effect transistor where the transistor channel is enlarged vertically with an insulating pillar. Technology Computer Aided Design modeling was conducted to investigate the operational performance of the proposed device. For ultra-short lateral channel length of similar to 9.5 nm between source and drain, a remarkably low subthreshold swing of similar to 62.6 mV/dec was obtained at 0.5 V drain bias. The drain induced barrier lowering was also found to be quite small, similar to 13.7 mV V-1. Our device structure makes it possible to achieve the thermodynamic limit of subthreshold swing for the lateral device size of several nanometers.
Publisher
IOP PUBLISHING LTD
ISSN
0268-1242
Keyword (Author)
subthreshold swingdrain induced barrier loweringvertical MOSFETpoly-Si channelself-aligned source and drain
Keyword
THRESHOLD VOLTAGESOI

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