Floating Body DRAM with Body Raised and Source/Drain Separation

One-Transistor (1T) DRAMs are one of the potential replacements for conventional 1T-1C dynamic memory cells for future scaling of embedded and stand-alone memory architectures. In this work, a scaled (channel length 10nm) floating body 1T memory device architecture with ultra-thin body is studied, w...

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Main Author: Gino Giusi
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/10/6/706
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author Gino Giusi
author_facet Gino Giusi
author_sort Gino Giusi
collection DOAJ
description One-Transistor (1T) DRAMs are one of the potential replacements for conventional 1T-1C dynamic memory cells for future scaling of embedded and stand-alone memory architectures. In this work, a scaled (channel length 10nm) floating body 1T memory device architecture with ultra-thin body is studied, which uses a combined approach of a body raised storage region and separated source/drain regions having the role to reduce thermal and field enhanced band-to-band recombination. The physical mechanisms along the geometry and bias scaling are discussed in order to address the requirements of embedded or stand-alone applications. Two-dimensional device simulations show that, with proper optimization of the geometry and bias, the combined approach allows the increase of the retention time and of the programming window by more than one order of magnitude.
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spelling doaj.art-8cd4ac6fad214789b18bf4de295ee2192023-11-21T10:55:30ZengMDPI AGElectronics2079-92922021-03-0110670610.3390/electronics10060706Floating Body DRAM with Body Raised and Source/Drain SeparationGino Giusi0Engineering Department, University of Messina, I-98166 Messina, ItalyOne-Transistor (1T) DRAMs are one of the potential replacements for conventional 1T-1C dynamic memory cells for future scaling of embedded and stand-alone memory architectures. In this work, a scaled (channel length 10nm) floating body 1T memory device architecture with ultra-thin body is studied, which uses a combined approach of a body raised storage region and separated source/drain regions having the role to reduce thermal and field enhanced band-to-band recombination. The physical mechanisms along the geometry and bias scaling are discussed in order to address the requirements of embedded or stand-alone applications. Two-dimensional device simulations show that, with proper optimization of the geometry and bias, the combined approach allows the increase of the retention time and of the programming window by more than one order of magnitude.https://www.mdpi.com/2079-9292/10/6/706one-transistor dynamic random-access memoryfloating bodyultra-thin bodytrap assisted tunnelingband to band tunnelingdevice simulations
spellingShingle Gino Giusi
Floating Body DRAM with Body Raised and Source/Drain Separation
Electronics
one-transistor dynamic random-access memory
floating body
ultra-thin body
trap assisted tunneling
band to band tunneling
device simulations
title Floating Body DRAM with Body Raised and Source/Drain Separation
title_full Floating Body DRAM with Body Raised and Source/Drain Separation
title_fullStr Floating Body DRAM with Body Raised and Source/Drain Separation
title_full_unstemmed Floating Body DRAM with Body Raised and Source/Drain Separation
title_short Floating Body DRAM with Body Raised and Source/Drain Separation
title_sort floating body dram with body raised and source drain separation
topic one-transistor dynamic random-access memory
floating body
ultra-thin body
trap assisted tunneling
band to band tunneling
device simulations
url https://www.mdpi.com/2079-9292/10/6/706
work_keys_str_mv AT ginogiusi floatingbodydramwithbodyraisedandsourcedrainseparation