Doping-Less Feedback Field-Effect Transistors

In this study, we propose doping-less feedback field-effect transistors (DLFBFETs). Our DLFBFETs are 5 nm thick intrinsic semiconductor bodies with dual gates. Usually, DLFBFETs are virtually doped through charge plasma phenomena caused by the source, the drain, and the dual-gate electrodes as well...

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Main Authors: Hakin Kim, Doohyeok Lim
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/15/3/316
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author Hakin Kim
Doohyeok Lim
author_facet Hakin Kim
Doohyeok Lim
author_sort Hakin Kim
collection DOAJ
description In this study, we propose doping-less feedback field-effect transistors (DLFBFETs). Our DLFBFETs are 5 nm thick intrinsic semiconductor bodies with dual gates. Usually, DLFBFETs are virtually doped through charge plasma phenomena caused by the source, the drain, and the dual-gate electrodes as well as the gate biases. Our DLFBFETs can be fabricated through a simple process of creating contact between a metal and a silicon body without any doping processes. The voltages applied to both gates determine whether the DLFBFETs operate in diode or feedback field-effect transistor (FBFET) modes. In the FBFET mode, our DLFBFETs show good characteristics such as an on/off current ratio of ~10<sup>4</sup> and steep switching characteristics (~1 mV/decade of current) that result from positive feedback phenomena without dopants.
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spelling doaj.art-f0a349b75b4041bfa754c2559b683c192024-03-27T13:55:00ZengMDPI AGMicromachines2072-666X2024-02-0115331610.3390/mi15030316Doping-Less Feedback Field-Effect TransistorsHakin Kim0Doohyeok Lim1Department of Nano Electronic Convergence Engineering, Kyonggi University, Suwon 16227, Gyeonggi-do, Republic of KoreaDepartment of Nano Electronic Convergence Engineering, Kyonggi University, Suwon 16227, Gyeonggi-do, Republic of KoreaIn this study, we propose doping-less feedback field-effect transistors (DLFBFETs). Our DLFBFETs are 5 nm thick intrinsic semiconductor bodies with dual gates. Usually, DLFBFETs are virtually doped through charge plasma phenomena caused by the source, the drain, and the dual-gate electrodes as well as the gate biases. Our DLFBFETs can be fabricated through a simple process of creating contact between a metal and a silicon body without any doping processes. The voltages applied to both gates determine whether the DLFBFETs operate in diode or feedback field-effect transistor (FBFET) modes. In the FBFET mode, our DLFBFETs show good characteristics such as an on/off current ratio of ~10<sup>4</sup> and steep switching characteristics (~1 mV/decade of current) that result from positive feedback phenomena without dopants.https://www.mdpi.com/2072-666X/15/3/316doping-less devicefeedback field-effect transistorcharge plasma
spellingShingle Hakin Kim
Doohyeok Lim
Doping-Less Feedback Field-Effect Transistors
Micromachines
doping-less device
feedback field-effect transistor
charge plasma
title Doping-Less Feedback Field-Effect Transistors
title_full Doping-Less Feedback Field-Effect Transistors
title_fullStr Doping-Less Feedback Field-Effect Transistors
title_full_unstemmed Doping-Less Feedback Field-Effect Transistors
title_short Doping-Less Feedback Field-Effect Transistors
title_sort doping less feedback field effect transistors
topic doping-less device
feedback field-effect transistor
charge plasma
url https://www.mdpi.com/2072-666X/15/3/316
work_keys_str_mv AT hakinkim dopinglessfeedbackfieldeffecttransistors
AT doohyeoklim dopinglessfeedbackfieldeffecttransistors