Article(id=1249378696608550958, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1249378689566315521, articleNumber=null, orderNo=null, doi=10.3981/j.issn.1000-7857.2025.09.00126, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1759161600000, receivedDateStr=2025-09-30, revisedDate=1765900800000, revisedDateStr=2025-12-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1775804693605, onlineDateStr=2026-04-10, pubDate=1773331200000, pubDateStr=2026-03-13, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1775804693605, onlineIssueDateStr=2026-04-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1775804693605, creator=13701087609, updateTime=1775804693605, updator=13701087609, issue=Issue{id=1249378689566315521, tenantId=1146029695717560320, journalId=1146031591421210625, year='2026', volume='44', issue='5', pageStart='1', pageEnd='124', issueExtLink='null', onlineDate='null', pubDate='1773331200000', pubDateStr='2026-03-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1775804691926, creator='13701087609', updateTime=1775804953440, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1249379786603303548, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1249378689566315521, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1249379786603303549, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1249378689566315521, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=82, endPage=89, ext={EN=ArticleExt(id=1249378697082507326, articleId=1249378696608550958, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Charge trapping−based reconfigurable two−dimensional transistors and their logic circuit applications, columnId=1150494644690366681, journalTitle=Science & Technology Review, columnName=Papers, runingTitle=null, highlight=null, articleAbstract=

In the post−Moore era, two−dimensional (2D) materials have emerged as pivotal candidates to transcend silicon's physical limits, leveraging their atomic−scale thickness and exceptional electronic properties. Reconfigurable transistors capable of dynamic P−/N−type polarity switching in a single device architecture further present transformative opportunities for circuit design innovation. Nevertheless, achieving nonvolatile operation in electrostatically gated reconfigurable transistors remains a critical challenge. To address this, this work demonstrates a charge−trapping−mediated nonvolatile reconfigurable field−effect transistor (CTRFET) featuring a WSe2 channel and an engineered Al2O3/HfO2/Al2O3 (AHA) charge−trapping heterostructure, which enables robust and nonvolatile polarity control. A reconfigurable logic gate constructed with two CTRFETs exhibits programmable multifunctional operation through electrical modulation. This dynamic reconfigurability establishes a new design framework for high−density, energy−efficient adaptive hardware, with promising applications spanning programmable electronics, self−adaptive computing systems, and intelligent sensing integrated circuits.

, authors=null, authorsList=Pengfei ZHU, Jingbo YANG, Mengyang LIU, Mengjiao LI, authorCompany=null, correspAuthors=Mengyang LIU, Mengjiao LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=All rights reserved. Unauthorized reproduction is prohibited., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1249378700270178428, articleId=1249378696608550958, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=基于电荷俘获的可重构二维晶体管及逻辑电路应用, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

在后摩尔时代,二维材料凭借其原子级厚度和优异的电学特性,被视为克服硅材料物理限制的关键候选材料。此外,基于二维半导体的可重构晶体管能够在单一器件中实现P型/ N型动态调控,进一步为优化电路设计提供创新思路。目前,基于静电调控的可重构二维晶体管在实现非易失调控方面仍面临挑战。为此,提出了一种基于可靠的电荷俘获机制的二维非易失性电荷俘获可重构场效应晶体管结构(CTRFET)。以WSe2作为二维沟道材料,引入Al2O3/HfO2/Al2O3(AHA)三明治结构作为电荷俘获层,成功实现了二维晶体管导电极性的非易失性调控,其中N型FET的开关比高达105,编程状态可保持超过104 s,且在104次循环后性能仍保持稳定。在此基础上,利用2个CTRFET构建可重构逻辑单元,该单元可通过栅压编程灵活配置为2种不同的工作模式。当配置为标准反相器时,电路具备全输出摆幅,电压增益可达19。器件所展现的动态可重构能力为高功能密度自适应器件电路的开发提供了新的设计思路,在可编程器件、自配置计算体系和智能感知芯片等领域展现出广阔的应用前景。

, authors=

朱鹏飞,硕士研究生,研究方向为集成电路先进节点器件与电路系统,电子信箱:

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刘梦洋(通信作者),讲师,研究方向为柔性半导体器件、可穿戴传感系统,电子信箱:;
李梦姣(共同通信作者),教授,研究方向为集成电路先进节点器件、低维光电器件、高性能存储器、类神经形态感知,电子信箱:
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类型功能层非易失性可重构逻辑应用保持时间/s反相器增益文献
电压调控BP/Al2O3/Bias Electron×全摆幅 35[23]
电压调控SiNW/hBN/Bias Electro××[24]
电压调控InSe/Multi−Bias Electron×非全摆幅 13[25]
铁电调控WSe2/P(VDF−TrEE)×1000[26]
铁电调控MoTe2/CIPS×4500[27]
铁电调控WSe2/P(VDF−TrEE)×150[28]
铁电调控Gr/CIPS×90[29]
光辅助电荷俘获WSe2/hBN/SiO220000全摆幅 0.8[30]
电荷俘获WSe2/Al2O3/HfO2/Al2O310000全摆幅 19本工作
), ArticleFig(id=1252915040416903340, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1249378696608550958, language=CN, label=表1, caption=

已发表可重构器件的性能与可重构逻辑应用统计

, figureFileSmall=null, figureFileBig=null, tableContent=
类型功能层非易失性可重构逻辑应用保持时间/s反相器增益文献
电压调控BP/Al2O3/Bias Electron×全摆幅 35[23]
电压调控SiNW/hBN/Bias Electro××[24]
电压调控InSe/Multi−Bias Electron×非全摆幅 13[25]
铁电调控WSe2/P(VDF−TrEE)×1000[26]
铁电调控MoTe2/CIPS×4500[27]
铁电调控WSe2/P(VDF−TrEE)×150[28]
铁电调控Gr/CIPS×90[29]
光辅助电荷俘获WSe2/hBN/SiO220000全摆幅 0.8[30]
电荷俘获WSe2/Al2O3/HfO2/Al2O310000全摆幅 19本工作
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基于电荷俘获的可重构二维晶体管及逻辑电路应用
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朱鹏飞 , 杨静泊 , 刘梦洋 * , 李梦姣 *
科技导报 | 研究论文 2026,44(5): 82-89
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科技导报 |研究论文 2026 , 44 (5) : 82 -89
基于电荷俘获的可重构二维晶体管及逻辑电路应用
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朱鹏飞 , 杨静泊, 刘梦洋* , 李梦姣*
作者信息
  • 上海大学微电子学院,上海 201800
通讯作者:
刘梦洋(通信作者),讲师,研究方向为柔性半导体器件、可穿戴传感系统,电子信箱:;
李梦姣(共同通信作者),教授,研究方向为集成电路先进节点器件、低维光电器件、高性能存储器、类神经形态感知,电子信箱:
Charge trapping−based reconfigurable two−dimensional transistors and their logic circuit applications
Pengfei ZHU , Jingbo YANG, Mengyang LIU* , Mengjiao LI*
Affiliations
  • School of Microelectronics, Shanghai University, Shanghai 201800, China
出版时间: 2026-03-13 doi: 10.3981/j.issn.1000-7857.2025.09.00126
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在后摩尔时代,二维材料凭借其原子级厚度和优异的电学特性,被视为克服硅材料物理限制的关键候选材料。此外,基于二维半导体的可重构晶体管能够在单一器件中实现P型/ N型动态调控,进一步为优化电路设计提供创新思路。目前,基于静电调控的可重构二维晶体管在实现非易失调控方面仍面临挑战。为此,提出了一种基于可靠的电荷俘获机制的二维非易失性电荷俘获可重构场效应晶体管结构(CTRFET)。以WSe2作为二维沟道材料,引入Al2O3/HfO2/Al2O3(AHA)三明治结构作为电荷俘获层,成功实现了二维晶体管导电极性的非易失性调控,其中N型FET的开关比高达105,编程状态可保持超过104 s,且在104次循环后性能仍保持稳定。在此基础上,利用2个CTRFET构建可重构逻辑单元,该单元可通过栅压编程灵活配置为2种不同的工作模式。当配置为标准反相器时,电路具备全输出摆幅,电压增益可达19。器件所展现的动态可重构能力为高功能密度自适应器件电路的开发提供了新的设计思路,在可编程器件、自配置计算体系和智能感知芯片等领域展现出广阔的应用前景。

二维材料  /  可重构晶体管  /  非易失性  /  可重构电路  /  电荷俘获

In the post−Moore era, two−dimensional (2D) materials have emerged as pivotal candidates to transcend silicon's physical limits, leveraging their atomic−scale thickness and exceptional electronic properties. Reconfigurable transistors capable of dynamic P−/N−type polarity switching in a single device architecture further present transformative opportunities for circuit design innovation. Nevertheless, achieving nonvolatile operation in electrostatically gated reconfigurable transistors remains a critical challenge. To address this, this work demonstrates a charge−trapping−mediated nonvolatile reconfigurable field−effect transistor (CTRFET) featuring a WSe2 channel and an engineered Al2O3/HfO2/Al2O3 (AHA) charge−trapping heterostructure, which enables robust and nonvolatile polarity control. A reconfigurable logic gate constructed with two CTRFETs exhibits programmable multifunctional operation through electrical modulation. This dynamic reconfigurability establishes a new design framework for high−density, energy−efficient adaptive hardware, with promising applications spanning programmable electronics, self−adaptive computing systems, and intelligent sensing integrated circuits.

two−dimensional materials  /  reconfigurable transistor  /  nonvolatility  /  reconfigurable circuit  /  charge trapping
朱鹏飞, 杨静泊, 刘梦洋, 李梦姣. 基于电荷俘获的可重构二维晶体管及逻辑电路应用. 科技导报, 2026 , 44 (5) : 82 -89 . DOI: 10.3981/j.issn.1000-7857.2025.09.00126
Pengfei ZHU, Jingbo YANG, Mengyang LIU, Mengjiao LI. Charge trapping−based reconfigurable two−dimensional transistors and their logic circuit applications[J]. Science & Technology Review, 2026 , 44 (5) : 82 -89 . DOI: 10.3981/j.issn.1000-7857.2025.09.00126
随着数字经济的蓬勃发展,全球数据量正呈指数级增长。据国际数据公司(International Data Corporation,IDC)预测,到2025年全球数据总量将达175 ZB,这对计算硬件的处理能力提出了前所未有的要求[1]。然而,延续半个多世纪的摩尔定律正面临严峻挑战:晶体管特征尺寸逼近物理极限,传统硅基互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)技术遭遇了短沟道效应和量子隧穿效应等基础物理现象限制,而供电电压的持续降低也受到玻尔兹曼极限的约束[25]
为突破这一困局,学术界和产业界正在探索2条创新路径:一方面,通过隧穿场效应晶体管(tunnelling field−effect transistor,TFET)、可重构场效应晶体管(reconfigurable field−effect transistor,RFET)等新原理器件结构,实现晶体管器件性能提升及功能配置优化[610];另一方面,引入碳纳米管、二维材料等新型半导体,利用其独特的电学特性克服传统硅材料的物理限制[1114]。RFET作为一种独特的可编程器件,其核心创新在于能够在运行过程中动态调控P型与N型导电极性[1516]。凭借这一动态极性转换能力,逻辑电路可通过不同编程条件实现多种功能,这不仅显著提升了电路的功能灵活性,也为计算架构的动态资源配置提供了理论支撑[17]。在可重构器件发展历程中,Lin等[18]率先在绝缘层上硅(silicon on insulator,SOI)平台通过编程栅(program gate,PG)结构调整肖特基势垒,成功实现了沟道极性的电学调控,标志着RFET的首次实验验证。随后,Lin等[19]将该设计理念拓展至碳纳米管体系,在二维材料领域实现了首例RFET。然而,这类基于静电调控的RFET器件通常呈现出易失性行为,需持续施加外部偏置电压来维持极性调变,导致器件静态功耗与散热问题显著加剧,严重制约实际应用[20]。为此,研究焦点转向通过器件结构优化来实现非易失性操作。
鉴于浮栅(floating gate, FG)基结构[21]为实现高性能非易失性极性调控提供了有效平台,本文基于类浮栅的电荷俘获型闪存结构设计了一种二维非易失性电荷俘获可重构场效应晶体管(charge trapping reconfigurable field effect transistor,CTRFET)器件,利用Al2O3/HfO2/Al2O3(AHA)电荷俘获叠层可控的电荷俘获/释放过程,在器件内部产生稳定的内建电场,从而实现对沟道极性的可靠性非易失调控,单态保持时间达10000 s。此外,基于该器件构建的逻辑电路可以实现多种逻辑功能切换。这种灵活的器件设计,为构建高密度、低功耗的下一代计算系统奠定了硬件基础,并开辟了新的技术路径。
CTRFET器件制备采用标准Si基CMOS兼容工艺,具体流程如图1所示。在Si/SiO2衬底上采用电子束光刻(electron beam lithography,EBL)定义底栅区域,通过金属热蒸镀沉积5/30 nm厚的Ti/Au金属电极,经剥离工艺剥离光刻胶及表面金属后完成栅极制备。栅介质层兼电荷俘获层采用原子层沉积(atomic layer deposition,ALD)技术依次生长Al2O3(20 nm)/HfO2(6 nm)/Al2O3(8 nm)叠层结构,沉积温度控制在200℃以下以保证工艺兼容性。有源层WSe2通过机械剥离法制备,利用聚二甲基硅氧烷(polydimethylsiloxane,PDMS)干法转移技术精确对准转移至介电层表面。最后通过EBL定义源漏电极图形,蒸发沉积30 nm Au电极后经剥离工艺完成器件制备。整个器件在转移有源层和剥离工艺剥离光刻胶后,统一于N2环境中进行200℃、20 min的退火处理,以去除有机残留、改善金属−半导体接触界面,并消除工艺应力对沟道材料的影响。
所制备的CTRFET的结构图与光学显微镜图像分别如图2(a)和(b)所示,其垂直架构由下至上依次集成栅极、多层介电层、沟道层和源/漏电极。得益于ALD技术对薄膜生长的精确控制,截面透射电子显微镜(transmission electron microscope,TEM)图像(图2(b))证实了各介质层的厚度与设计值一致。底部栅极(bottom gate,BG)作为调控电极,用于调制电荷俘获层的存储行为。其上集成的多层介电堆叠采用三明治结构设计:底部的20 nm Al2O3作为阻挡层,其优化的厚度实现了与栅极的电学隔离,从而显著提升了电荷保持特性;中间6 nm HfO2作为电荷俘获层,利用其固有氧空位缺陷[22]存储载流子,其与Al2O3形成的高隧穿势垒(电子与空穴势垒分别约为1.5 eV和1.3 eV)有效抑制电荷纵向扩散;顶部的8 nm Al2O3则作为隧穿层(tunneling layer),在编程/擦除操作时为载流子提供可控的Fowler−Nordheim隧穿通道。器件顶部集成了具有双极性传输特性的二维WSe2沟道层,其上制备的源/漏电极(source/drain)构成了载流子定向输运路径,这一整体架构设计实现了电荷存储与晶体管开关功能的协同调控。
基于该器件结构,CTRFET可通过BG电压脉冲实现N型/P型极性调控。如图2(c)所示,当BG施加正向脉冲电压(VBG>0)时,在电场驱动下,电子从WSe2沟道层隧穿通过Al2O3隧穿层,被HfO2电荷俘获层中的缺陷态(如氧空位)所捕获[22]。由于HfO2与Al2O3界面存在显著的电子势垒(约1.5 eV),这些被限制的电子在无外场作用下被有效限制在HfO2层内。俘获的电子通过静电感应效应,在垂直方向产生由沟道指向电荷俘获层的电场。该感应电场与电子隧穿过程协同作用,引发WSe2沟道能带偏移,驱使费米能级向价带移动,导致电子浓度降低、空穴成为多数载流子,从而实现了器件从双极性向P型特性的可靠转变(图2(d))。相应地,当施加负向脉冲电压(VBG<0)时,空穴被注入并俘获于HfO2层中。这些被俘获的空穴同样产生垂直感应电场,使WSe2沟道的费米能级向导带移动,进而将沟道多数载流子转变为电子,实现了器件向N型特性的可靠转换。这种基于电荷选择性俘获的调控机制,使得晶体管导电类型的非易失性电学重构得以实现。
CTRFET的电学性能测试在严格控制的实验条件下完成。器件特性由Keysight B2912B精密参数分析仪测量,且所有测试均在充满高纯氮气(N2)的无光照手套箱内进行,以最大限度地排除环境干扰。图3(a)表明所有输出曲线在低偏压区均呈现良好的线性关系,这一特征证实了WSe2沟道材料与Au电极之间形成了高质量的欧姆接触。在0.01 V的扫描步长下,器件的输出特性曲线(IdsVds)在背栅电压(VBG)−20 V至+20 V的范围内展现出显著的双极性导电特征。具体而言,当VBG从−20 V扫描至0 V时,漏极电流(Ids)随VBG绝对值的减小而单调递减,呈现典型的P型导电行为;当VBG从0 V增至20 V时,Ids则随VBG增大而增加,表现出明确的N型导电特性。
为深入探究器件的电学特性,系统研究了不同VBG扫描范围下的转移特性曲线(图3(b)),测量Vds为0.1 V。采用双向扫描模式测量时发现,随着VBG扫描范围的逐步扩大,转移曲线开始出现明显的阈值电压偏移现象,并形成可调控的回滞窗口。该现象源于栅压扫描过程中载流子在电荷俘获层中的动态存储行为:当施加正向栅压时,电子被注入并俘获在HfO2层中;而施加负向栅压时,空穴则被相应存储。更重要的是,回滞窗口的宽度与VBG扫描范围呈正相关关系,这进一步证实了电荷俘获层中的载流子存储密度可通过栅压幅度进行精确调控。该现象具有良好的可重复性,图3(c)所示为7个基于相同工艺制备的CTRFET的转移特性。统计表明,所有器件在±18 V的扫描范围内均表现出可辨识的回滞窗口与明显的双极性导电特性。这种稳定可控的电荷存储机制为器件实现非易失性极性调控提供了物理基础,是CTRFET实现可编程功能的核心所在。
载流子俘获后CTRFET器件的可编程极性调控特性如图3(d)所示。为准确表征俘获态下的导电特性,测试采用5 V的小范围扫描电压,此电压设置旨在保证测试灵敏度的同时,避免因电场过高而引发非预期的载流子俘获/去俘获。初始态测试显示原始器件呈现弱N型导电特性(灰色曲线);当在BG施加+18 V、1 s的正向脉冲电压后,转变为典型的P型特性(红色曲线),证实沟道导电载流子已由双极性转变为空穴主导;反之,施加−18 V、100 ms的负向脉冲电压后,转移曲线则呈现强N型特征,表明沟道转变为电子主导导电。这一实验结果清晰地证实了通过调控载流子俘获状态可实现器件导电极性的非易失性切换。
进一步对载流子俘获后的时间保持特性进行了测试。该测试用以评估俘获载流子的长时稳定性,同时反映器件导电极性的非易失保持能力。以下所有测试的读取电压Vds均为0.1 V,激发空穴捕获所施加的电压脉冲为−18 V/100 ms, 激发电子捕获所施加的电压脉冲为+18 V/1 s。图4(a)所示为在室温(298 K)、Vds = 0.1 V、VBG = 0 V的读取条件下,器件编程后10000 s内的Idst特性曲线。实验数据显示,当空穴俘获时,虽然Ids在10000 s内逐渐出现约0.4个数量级的衰减,但仍保持显著的N型导电特征;而电子俘获则展现出更优异的稳定性,其Ids在测试时间内几乎无衰减。这些结果充分证明CTRFET具有优异的非易失性存储特性,特别是电子俘获状态表现出近乎理想的极性保持能力。此外,这种基于AHA的非易失性设计展现出良好的热稳定性,Ids在室温(RT,298 K)和358 K的温度下持续2000 s仍保持稳定行为(图4(b)),这表明在存储器件实际工作环境的临界温度阈值以下,其电荷捕获动力学表现稳定。
最后,系统评估了其动态操作性能,包括编程速度与循环稳定性。图4(c)所示为CTRFET空穴俘获过程的操作速度,首先利用18 V/1 s的编程电压将器件编程至电子俘获状态(红色曲线),随后利用幅值为−18 V的编程电压激活空穴俘获,产生相应的Ids改变。随着编程时间的增加,至100 ms时,Ids变化逐渐趋近饱和。器件的循环耐受性测试结果如图4(d)所示,在104次的电子/空穴俘获循环测试中,器件始终能够稳定地切换并保持编程状态,且其电流的衰减几乎可以忽略,展现出卓越的循环稳定性。综上所述,CTRFET在时间保持、热稳定性、操作速度及循环耐受性等关键性能上均展现出优异的非易失性存储特性,证明了其在未来低功耗、高可靠性非易失性存储器中的应用潜力。
基于单CTRFET器件的极性调控特性,本研究进一步构建了由双CTRFET串联组成的可重构逻辑电路,光学图像、电路结构及端口配置如图5(a)所示。电路初始状态下,2个CTRFET均保持双极性特征,因而电路不呈现特定逻辑功能。而重构信号端经±18 V编程电压(上拉管:+18 V编程为P型;下拉管:−18 V编程为N型)后,电路转变为具有标准反相器功能的逻辑单元。值得说明的是,编程完成后,该重构信号端即作为电路的电压输入端(Vin),在±3 V输入下便可实现逻辑反相功能(图5(b))。采用小电压(±3 V)进行读取和电路测试,目的是避免高压干扰已存储的电荷状态,从而准确评估编程态的稳定性与功能。
图6(a)所示为不同电源电压(VDD为1~4 V)条件下反相器的电压传输特性(VTC)及增益特性。测试结果表明,在所有VDD条件下,输出电压均呈现完美的全摆幅特性(Vout 的最大差值与VDD相等),高、低电平噪声裕度(NMLNMH)可达0.25 VDD和0.57 VDD,表明其具备可靠的逻辑电平识别能力。通过式(1)计算的反相器电压增益表明,随着VDD的增加,增益显著提升,在VDD=4 V时峰值增益达到19,充分证明了该可重构电路优异的信号放大能力。
$ Gain=|{\mathrm{d}{V}_{\mathrm{out}}}/{\mathrm{d}{V}_{\mathrm{in}}}| $
更有意义的是,通过施加反向编程电压(上拉管采用−18 V编程为N型,下拉管采用+18 V编程为P型),电路可重构为另一种工作模式(图6(b)),其电压传输特性与标准反相器完全相反:在低输入电压时输出低电平,高输入电压时输出高电平。这种双模式可重构特性为自适应逻辑电路设计提供了新的可能性,展现了CTRFET在可编程硬件领域的独特优势。
通过表1与已报道RFET的系统对比,本工作开发的CTRFET展现出以下优势:首先,其非易失性存储性能较传统静电调控型RFET有明显突破,且极性保持特性优于多数非易失性可重构器件,这归因于AHA叠层结构独特的载流子保持机制;其次,重构后的器件表现出优异的开关特性,在电路层面进一步体现为构建的反相器实现了较高的电压增益。这些结果证实了该器件在可重构电子领域的应用潜力。
1) CTRFET在±18 V编程电压下可实现稳定的极性切换,其中N型FET的开关比达到105,编程状态保持时间超过104 s,且在104次编程/擦除循环后仍保持稳定,展现了优异的非易失特性与耐久性。
2) 基于双CTRFET构建的可重构逻辑单元能够通过编程灵活配置工作模式,在反相器模式下实现了19的电压增益与全摆幅输出,证明了其在动态重构逻辑中的可行性与功能完整性。
3) 当前基于底栅结构的CTRFET电路,其编程端口与逻辑端口在空间上重叠,这导致电路在向更高规模集成时面临端口复用困难和信号串扰的显著挑战。因此,探索面向高密度集成的器件结构与互联方案,以推动其在实际可重构计算系统中的应用至关重要。
  • 国家重点研发计划项目(2024YFA1211500)
  • 国家自然科学基金项目(62304320)
  • 国家自然科学基金项目(62574123)
  • 上海市科委启明星项目(24QA2702800)
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doi: 10.3981/j.issn.1000-7857.2025.09.00126
  • 接收时间:2025-09-30
  • 首发时间:2026-04-10
  • 出版时间:2026-03-13
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  • 收稿日期:2025-09-30
  • 修回日期:2025-12-17
基金
国家重点研发计划项目(2024YFA1211500)
国家自然科学基金项目(62304320)
国家自然科学基金项目(62574123)
上海市科委启明星项目(24QA2702800)
作者信息
    上海大学微电子学院,上海 201800

通讯作者:

刘梦洋(通信作者),讲师,研究方向为柔性半导体器件、可穿戴传感系统,电子信箱:;
李梦姣(共同通信作者),教授,研究方向为集成电路先进节点器件、低维光电器件、高性能存储器、类神经形态感知,电子信箱:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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