A Semi-Floating Gate Memory Based on SOI Substrate by TCAD Simulation

Over the past decade, the dimensional scaling of semiconductor electronic devices has been facing fundamental and physical challenges, and there is currently an urgent need to increase the ability of dynamic random-access memory (DRAM). A semi-floating gate (SFG) transistor has been proposed as a ca...

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Main Authors: Han Li, Chen Wang, Lin Chen, Hao Zhu, Qingqing Sun
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/8/10/1198
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spelling doaj-ed070c9d22c1435096326a212955cbda2020-11-25T00:04:25ZengMDPI AGElectronics2079-92922019-10-01810119810.3390/electronics8101198electronics8101198A Semi-Floating Gate Memory Based on SOI Substrate by TCAD SimulationHan Li0Chen Wang1Lin Chen2Hao Zhu3Qingqing Sun4School of Microelectronics, Fudan University, Shanghai 200433, ChinaSchool of Microelectronics, Fudan University, Shanghai 200433, ChinaSchool of Microelectronics, Fudan University, Shanghai 200433, ChinaSchool of Microelectronics, Fudan University, Shanghai 200433, ChinaSchool of Microelectronics, Fudan University, Shanghai 200433, ChinaOver the past decade, the dimensional scaling of semiconductor electronic devices has been facing fundamental and physical challenges, and there is currently an urgent need to increase the ability of dynamic random-access memory (DRAM). A semi-floating gate (SFG) transistor has been proposed as a capacitor-less memory with faster speed and higher density as compared with the conventional one-transistor one-capacitor (1T1C) DRAM technology. The integration of SFG-based memory on the silicon-on-insulator (SOI) substrate has been demonstrated in this work by using the Sentaurus Technology Computer-Aided Design (TCAD) simulation. An enhancement in retention characteristics, anti-disturbance ability, and fast writing capability, have been illustrated. The device exhibits a low operation voltage, a large threshold voltage window of ~3 V, and an ultra-fast writing of 4 ns. In addition, the SOI-based memory has shown a much-improved anti-irradiation capability compared to the devices based on bulk silicon, which makes it much more attractive in broader applications.https://www.mdpi.com/2079-9292/8/10/1198semi-floating gate transistorsilicon-on-insulatorretentionanti-disturbancewriting speedanti-irradiation
collection DOAJ
language English
format Article
sources DOAJ
author Han Li
Chen Wang
Lin Chen
Hao Zhu
Qingqing Sun
spellingShingle Han Li
Chen Wang
Lin Chen
Hao Zhu
Qingqing Sun
A Semi-Floating Gate Memory Based on SOI Substrate by TCAD Simulation
Electronics
semi-floating gate transistor
silicon-on-insulator
retention
anti-disturbance
writing speed
anti-irradiation
author_facet Han Li
Chen Wang
Lin Chen
Hao Zhu
Qingqing Sun
author_sort Han Li
title A Semi-Floating Gate Memory Based on SOI Substrate by TCAD Simulation
title_short A Semi-Floating Gate Memory Based on SOI Substrate by TCAD Simulation
title_full A Semi-Floating Gate Memory Based on SOI Substrate by TCAD Simulation
title_fullStr A Semi-Floating Gate Memory Based on SOI Substrate by TCAD Simulation
title_full_unstemmed A Semi-Floating Gate Memory Based on SOI Substrate by TCAD Simulation
title_sort semi-floating gate memory based on soi substrate by tcad simulation
publisher MDPI AG
series Electronics
issn 2079-9292
publishDate 2019-10-01
description Over the past decade, the dimensional scaling of semiconductor electronic devices has been facing fundamental and physical challenges, and there is currently an urgent need to increase the ability of dynamic random-access memory (DRAM). A semi-floating gate (SFG) transistor has been proposed as a capacitor-less memory with faster speed and higher density as compared with the conventional one-transistor one-capacitor (1T1C) DRAM technology. The integration of SFG-based memory on the silicon-on-insulator (SOI) substrate has been demonstrated in this work by using the Sentaurus Technology Computer-Aided Design (TCAD) simulation. An enhancement in retention characteristics, anti-disturbance ability, and fast writing capability, have been illustrated. The device exhibits a low operation voltage, a large threshold voltage window of ~3 V, and an ultra-fast writing of 4 ns. In addition, the SOI-based memory has shown a much-improved anti-irradiation capability compared to the devices based on bulk silicon, which makes it much more attractive in broader applications.
topic semi-floating gate transistor
silicon-on-insulator
retention
anti-disturbance
writing speed
anti-irradiation
url https://www.mdpi.com/2079-9292/8/10/1198
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