Page 31 - 《真空与低温》2025年第3期
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真空与低温 第 31 卷 第 3 期
302 Vacuum and Cryogenics 2025 年 5 月
可 集 成 真 空 微 纳 电 子 器 件 发 展 与 展 望
韩熙隆 ,覃奀垚 ,章灿然 ,陶 晖 1,3 ,王琦龙 1*
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(1. 东南大学 电子科学与工程学院 ,南京 211102;
2. 昆山国力电子科技股份有限公司,江苏 昆山 215300;3. 南京三乐集团有限公司,南京 211800)
摘要:真空微纳电子器件(VMNEDs)凭借其高速运行、耐高温、抗辐射及极端环境适应性等独特优势,已成为
极端环境电子学领域的研究热点。本文系统综述了真空微纳电子器件的发展历程、理论基础、技术进展及未来
前景,重点探讨其作为传统真空管与固态器件桥梁作用的潜力。将 VMNEDs 与微机电系统(MEMS)和光子电路
集成,有望推动航空航天、能源与量子技术领域的多功能高可靠性系统发展。结合理论见解与实验成果,提出了
面向极端环境的新一代电子器件的技术路线图。
关键词:真空微纳电子器件;场发射;纳米沟道;弹道输运;真空电子学
中图分类号:TB71 文献标志码:A 文章编号:1006−7086(2025)03−0302−13
DOI:10.12446/j.issn.1006-7086.2025.03.003
Development and Prospects of Scalable Vacuum Micro-nanoscale Electronic Devices
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HAN Xilong ,QIN Enyao ,ZHANG Canran ,TAO Hui ,WANG Qilong
(1. School of Electronic Science and Technology,Southeast University,Nanjing 211102,China;
2. Kunshan GLVAC Electronic Technology Co.,Ltd.,Kunshan 215300,Jiangsu,China;
3. Nanjing Sanle Group Co.,Ltd.,Nanjing 211800,China)
Abstract: Vacuum micro-nanoscale electronic devices (VMNEDs), a class of emerging devices combining vacuum
electronics with nanotechnology,have garnered significant attention for their excellent high-speed performance,high-temper-
ature tolerance,radiation resistance,and extreme-environment compatibility. This review systematically analyzes the evolu-
tion,theoretical frameworks,technological breakthroughs,and future trajectories of VMNEDs,highlighting their potential to
merge traditional vacuum tube advantages with solid-state device miniaturization. Leveraging field emission theory and
nanoscale vacuum channel designs,VMNEDs enable ballistic electron transport under atmospheric pressure,achieving low-
voltage operation (below 10 V) and ultrahigh-frequency responses (cutoff frequencies up to 0.46 THz). Structural innova-
tions,categorized into planar and vertical architectures,exhibit distinct merits: planar devices (e.g.,coplanar graphene-based
transistors) achieve sub-120 mV/dec subthreshold swing and CMOS compatibility, while vertical configurations (e.g.,
Spindt cathodes, internal/external channel structures) deliver high current densities (>3 000 A/cm²) and robust stability at
600 ℃ or under 30 krad radiation. Material advancements further drive performance: selectively etched metallic nanotips
achieve field enhancement factors exceeding 6 000,wide-bandgap semiconductors (SiC,GaN) integrate low electron affini-
ty with intrinsic radiation hardness,and low-dimensional materials (carbon nanotubes,graphene) optimize emission efficiency
through surface functionalization of work functions. Despite progress,challenges remain in process uniformity,long-term reli-
ability (e.g.,tip degradation,material oxidation),and CMOS integration. Recent nanofabrication breakthroughs,such as um-
brella-shaped cathodes and vertical air-bridge structures,have improved current density and switching speeds. Experimental
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validation under extreme conditions(including 1×10 n/cm neutron irradiation and >500 ℃ operation)confirms VMNED re-
silience,positioning them for space applications. Emerging uses span high-frequency communication,deep-space ion propul-
收稿日期:2025−03−03
基金项目:国家自然科学基金(92364108)
作者简介:韩熙隆,硕士研究生。E-mail:220231770@seu.edu.cn
通信作者:王琦龙,博士,教授。E-mail:northrockwql@seu.edu.cn