| 引用本文: | 周海亮,赵天磊,张民选,等.碳纳米管场效应管尺寸缩小特性的比较.[J].国防科技大学学报,2011,33(3):77-82.[点击复制] |
| ZHOU Hailiang,ZHAO Tianlei,ZHANG Minxuan,et al.Comparing of the Scaling Property of Carbon Nanotube Field Effect Transistors[J].Journal of National University of Defense Technology,2011,33(3):77-82[点击复制] |
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| 碳纳米管场效应管尺寸缩小特性的比较 |
| 周海亮1, 赵天磊1, 张民选1, 郝跃2 |
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(1.国防科技大学 计算机学院，湖南 长沙 410073;2.西安电子科技大学 微电子学院，陕西 西安 710071)
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| 摘要: |
| 由于具有更为显著的量子隧穿效应，碳纳米管场效应管具有较硅基MOS管不同的尺寸缩小特性，同时，由于工作机理的不同，类MOS碳纳米管场效应管 (C-CNFETs：Conventional MOS-like Carbon Nanotube Field Effect Transistors)的尺寸缩小特性与隧穿碳纳米管场效应管(T-CNFETs)也不尽相同。器件尺寸缩小特性研究是研究其应用前景的重要方式，而之前对碳纳米管场效应管尺寸缩小特性的研究并没考虑带间隧穿对碳纳米管场效应管尺寸缩小特性的影响。采用非平衡格林函数方法，对比研究了带间隧穿对C-CNFETs与T-CNFETs尺寸缩小特性的影响。研究结果表明两者存在较大差异、甚至截然相反的尺寸缩小特性。有利于为碳纳米管场效应管器件设计提供重要指导，以获取面积、速度、功耗之间的合理折中。 |
| 关键词: 碳纳米管场效应管 尺寸缩小特性 带间隧穿 非平衡格林函数 量子电容 |
| DOI： |
| 投稿日期：2010-09-09 |
| 基金项目:国家863高技术资助项目(2009AA01Z114，2009AA01Z124)；湖南省研究生科研创新项目 |
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| Comparing of the Scaling Property of Carbon Nanotube Field Effect Transistors |
| ZHOU Hailiang1, ZHAO Tianlei1, ZHANG Minxuan1, HAO Yue2 |
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(1.College of Computer, National Univ. of Defense Technology, Changsha 410073, China;2.School of Microelectronics, Xi'dian University, Xi'an 710071, China)
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| Abstract: |
| Owing to the more obvious quantum tunneling effect, Carbon Nanotube Field Effect Transistors (CNFETs) take on different scaling property from that of silicon based Metal-Oxide-Semiconductor (MOS) transistors. The scaling properties of Conventional MOS-like Carbon Nanotube Field Effect Transistors (C-CNFETs), on the other hand, differ from those of Tunneling Carbon Nanotube Field Effect Transistors (T-CNFETs) due to different operating mechanism. As a result, study on the scaling property is one of the most important means of searching for the application potential of the device. The band-to-band tunneling, however, has not been taken into account in previous researches. A comparative study of the impact of band-to-band tunneling on the scaling property of C-CNFETs and T-CNFETs was carried out based on Non-Equilibrium Green's Function method. The research results reveal that these two kinds of CNFETs take on different or even opposite scaling properties. The research will offer a vigorous guidance for the device design to obtain a proper trade-off among area, speed and power in application. |
| Keywords: CNFETs(Carbon Nanotube Field Effect Transistors) scaling property band-to-band-tunneling non-equilibrium Green's function quantum capacitance |
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