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Compact Models and the Physics of Nanoscale FETs: Survey Paper

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Last date : 27-Apr-2025

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Compact Models and the Physics of Nanoscale FETs: Survey Paper


Sinchana V Bhat | Suchi C | Tanuja C | Yashaswini M A



Sinchana V Bhat | Suchi C | Tanuja C | Yashaswini M A "Compact Models and the Physics of Nanoscale FETs: Survey Paper" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-9 | Issue-3, June 2025, pp.751-756, URL: https://www.ijtsrd.com/papers/ijtsrd80049.pdf

This work discusses the compact model and the physics of nanoscale field-effect transistors (FETs), specifically the Virtual Source (VS) model. It points out how conventional compact models, originally formulated for microscale devices, can be extended to characterize nanoscale FETs by redefining fundamental parameters such as mobility and saturation velocity. The authors employ the Landauer method to give physical meaning to these parameters and demonstrate that transport in nanoscale FETs is diffusion-limited close to the virtual source, both below and above threshold. The work also addresses how current saturation is controlled by velocity saturation near the source instead of the maximum channel velocity and why conventional models are still valid even though the nanoscale has different transport mechanisms. The findings seek to close the gap between compact modeling and device physics, providing a better understanding of nanoscale FET behavior for both circuit design and research purposes.

Virtual Source (VS) model, Landauer method, diffusion-limited transport, current saturation, velocity saturation


IJTSRD80049
Volume-9 | Issue-3, June 2025
751-756
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

International Journal of Trend in Scientific Research and Development - IJTSRD having online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas like Sciences, Technology, Innovation, Engineering, Agriculture, Management and many more and it is recommended by all Universities, review articles and short communications in all subjects. IJTSRD running an International Journal who are proving quality publication of peer reviewed and refereed international journals from diverse fields that emphasizes new research, development and their applications. IJTSRD provides an online access to exchange your research work, technical notes & surveying results among professionals throughout the world in e-journals. IJTSRD is a fastest growing and dynamic professional organization. The aim of this organization is to provide access not only to world class research resources, but through its professionals aim to bring in a significant transformation in the real of open access journals and online publishing.

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