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A Comprehensive Study of Carbon Nanotube Based Transistors: The Effects of Geometrical, Interface Barrier, and Scattering Parameters 基于碳纳米管晶体管的综合研究:几何、界面势垒和散射参数的影响
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346739
M. Pourfath, H. Kosina, S. Selberherr
The performance of carbon nanotube field-effect transistors has been studied based on the non-equilibrium Green's function formalism. The effects of elastic and inelastic scattering and the impact of parameters, such as electron-phonon coupling strength and phonon energy, on the device performance are analyzed. The effect of scaling of the source-gate spacer, drain-gate spacer, and gate length is studied. The results for devices with different barrier heights at the metal-CNT interface are discussed
基于非平衡格林函数理论,研究了碳纳米管场效应晶体管的性能。分析了弹性散射和非弹性散射的影响以及电子-声子耦合强度和声子能量等参数对器件性能的影响。研究了源栅间隔层、漏栅间隔层和栅极长度的影响。讨论了在金属-碳纳米管界面上具有不同势垒高度的器件的结果
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引用次数: 1
GaN HFET for W-band Power Applications 用于w波段功率应用的GaN HFET
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346802
M. Micovic, A. Kurdoghlian, P. Hashimoto, M. Hu, M. Antcliffe, P. Willadsen, W. Wong, R. Bowen, I. Milosavljevic, Adele E. Schmitz, M. Wetzel, David H. Chow
In this paper we report high frequency GaN power device and measured power performance of the first W-band (75 GHz-110 GHz) MMIC fabricated in GaN material system. The first W-band GaN MMIC with 150 mum of output gate periphery produces 316 mW of continuous wave output power (power density =2.1 W/m) at a frequency of 80.5 GHz and has associated power gain of 17.5 dB. By comparison the reported state of the art for other solid state technologies in W-band is 427 mW measured in a pulsed mode on an InP HEMT MMIC with 1600 mum of output periphery (power density = 0.26 W/mm). The reported result demonstrates tremendous superiority of GaN device technology for power applications at frequencies greater than 75 GHz
本文报道了用GaN材料制得的首个w波段(75 GHz-110 GHz) MMIC高频GaN功率器件,并测量了其功率性能。第一个W波段GaN MMIC输出栅极外围为150毫微米,在80.5 GHz频率下产生316mw的连续波输出功率(功率密度=2.1 W/m),相关功率增益为17.5 dB。相比之下,其他固态技术在W波段的现有水平为427兆瓦,在脉冲模式下,在输出外围1600毫微米(功率密度= 0.26瓦/毫米)的InP HEMT MMIC上测量。报告的结果表明,GaN器件技术在频率大于75 GHz的功率应用中具有巨大的优势
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引用次数: 102
Physics-Based Photodiode Model Enabling Consistent Opto-Electronic Circuit Simulation 基于物理的光电二极管模型实现一致的光电电路仿真
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346993
T. Ezaki, G. Suzuki, K. Konno, O. Matsushima, Y. Mizukane, D. Navarro, M. Miyake, N. Sadachika, H. Mattausch, M. Miura-Mattausch
The paper developed a photodiode (PD) model for circuit simulation considering, contrary to existing models, the transient carrier generation explicitly in the solution of the continuity equation. The developed model is compatible with conventional compact electrical device models and is demonstrated to enable accurate simulation of opto-electronic integrated circuits. The electric field distribution along the depth direction of the PD is found to cause a tail in the photo current, which has an adverse effect on optical response of PD and the performance of opto-electronic circuits. The developed opto-electronic circuit model is also applicable to predict how circuit performance is improved with respect to the improvement of photo diode characteristics
本文建立了一个用于电路仿真的光电二极管(PD)模型,与现有模型相反,在连续性方程的解中明确地考虑了瞬态载流子的产生。所开发的模型与传统的紧凑型电气器件模型兼容,并被证明可以实现光电集成电路的精确仿真。电场沿PD深度方向的分布会在光电流中产生尾巴,对PD的光响应和光电电路的性能产生不利影响。所建立的光电电路模型也适用于预测电路性能如何随着光电二极管特性的改善而改善
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引用次数: 8
Floating Body RAM Technology and its Scalability to 32nm Node and Beyond 浮动体RAM技术及其32nm及以上节点的可扩展性
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346846
T. Shino, Naoki Kusunoki, T. Higashi, Takashi Ohsawa, K. Fujita, K. Hatsuda, Nobuyuki Ikumi, Fumiyoshi Matsuoka, Yasuyuki Kajitani, Ryo Fukuda, Yoji Watanabe, Yoshihiro Minami, A. Sakamoto, Jun Nishimura, Hiroomi Nakajima, M. Morikado, Kazumi Inoh, Takeshi Hamamoto, Akihiro Nitayama
Technologies and improved performance of the floating body RAM are demonstrated. Reducing SOI thickness to 43nm, a 16Mb chip yield of 68% has been obtained. Device simulation proves that the floating body cell is scalable to the 32nm node keeping signal margin (threshold voltage difference) and data retention time constant
展示了浮动体RAM的技术和改进性能。将SOI厚度降低到43nm,获得了16Mb的芯片良率68%。器件仿真证明,该浮体单元可扩展到32nm节点,保持信号裕度(阈值电压差)和数据保留时间不变
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引用次数: 35
Gate-All-Around (GAA) Twin Silicon Nanowire MOSFET (TSNWFET) with 15 nm Length Gate and 4 nm Radius Nanowires 栅极-全能(GAA)双硅纳米线MOSFET (TSNWFET)具有15nm栅极长度和4nm半径的纳米线
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346838
K. Yeo, S. Suk, Ming Li, Y. Yeoh, K. Cho, Ki-Ha Hong, Seon-Pil Yun, Mong Sup Lee, N. Cho, Kwan-heum Lee, D. Hwang, Bokkyoung Park, Dong-Won Kim, Donggun Park, B. Ryu
GAA TSNWFET with 15 nm gate length and 4 nm radius nanowires is demonstrated and shows excellent short channel immunity. p-TSNWFET shows high driving current of 1.94 mA/mum while n-TSNWFET shows on-current of 1.44 mA/mum. Merits of TSNWFET and performance enhancement of p-TSNWFET are explored using 3D and quantum simulation
采用栅极长度为15 nm,纳米线半径为4 nm的GAA TSNWFET,具有良好的短沟道抗扰性。p-TSNWFET的驱动电流为1.94 mA/mum, n-TSNWFET的导通电流为1.44 mA/mum。利用三维和量子模拟的方法探讨了TSNWFET的优点和p-TSNWFET的性能增强
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引用次数: 181
Suppression of Defect Formation and Their Impact on Short Channel Effects and Drivability of pMOSFET with SiGe Source/Drain 缺陷形成的抑制及其对SiGe源/漏极pMOSFET短沟道效应和驱动性的影响
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346920
Y.S. Kim, Y. Shimamune, M. Fukuda, A. Katakami, A. Hatada, K. Kawamura, H. Ohta, T. Sakuma, Y. Hayami, H. Morioka, J. Ogura, T. Minami, N. Tamura, T. Mori, M. Kojima, K. Sukegawa, K. Hashimoto, M. Miyajima, S. Satoh, T. Sugii
The impact of defects on the short channel effects (SCE) and the drivability of a pMOSFET with a SiGe source/drain is described, and useful methods to reduce defect formation are suggested. The influence of defects on device performance is found to become more severe as recess depth increases and/or channel length decreases. By optimizing the epitaxial process, including an in-situ precleaning step, the initial defect density is reduced, and by introducing a cap layer on a SiGe layer, the thermal stability of the SiGe layer is improved. The optimized devices enhance mobility 42% by maximizing the strain effect and provide better SCE characteristics by suppressing boron diffusion
描述了缺陷对SiGe源漏极pMOSFET的短通道效应(SCE)和可驱动性的影响,并提出了减少缺陷形成的有效方法。发现缺陷对器件性能的影响随着凹槽深度的增加和/或通道长度的减小而变得更加严重。通过优化外延工艺,包括原位预清洗步骤,降低了初始缺陷密度,并通过在SiGe层上引入帽层,提高了SiGe层的热稳定性。优化后的器件通过最大化应变效应将迁移率提高42%,并通过抑制硼扩散提供更好的SCE特性
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引用次数: 3
Experimental Study on Quantum Structure of Silicon Nano Wire and Its Impact on Nano Wire MOSFET and Single-Electron Transistor 硅纳米线的量子结构及其对纳米线MOSFET和单电子晶体管影响的实验研究
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346988
M. Kobayashi, T. Hiramoto
We fabricated [100] and [110] directed nano wire MOSFET (NWFET), which works as NFET and PFET in the same channel. By comparing [100] and [110] direction, significantly small threshold voltage (Vth) fluctuation is experimentally observed in [110] PFET for the first time. This result supports the superiority of [110] NW PFET. Extremely narrow NWFET works as single-electron/single-hole transistors (SET/SHT). By comparing [100] and [110] direction, channel direction dependence of Coulomb blockade (CB) oscillations is experimentally clarified for the first time. We realize the highest performance in [100] SHT
我们制造了[100]和[110]定向纳米线MOSFET (NWFET),它们在同一通道中作为NFET和fet工作。通过对比[100]和[110]两个方向,我们首次在实验中观察到[110]fet中阈值电压(Vth)的波动非常小。这一结果支持了[110]NW fet的优越性。极窄NWFET工作原理为单电子/单孔晶体管(SET/SHT)。通过对[100]和[110]两个方向的比较,首次从实验上阐明了库仑阻断振荡的通道方向依赖性。我们实现了[100]SHT的最高性能
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引用次数: 4
High-Performance and Low-Power CMOS Device Technologies Featuring Metal/High-k Gate Stacks with Uniaxial Strained Silicon Channels on (100) and (110) Substrates 在(100)和(110)衬底上具有单轴应变硅通道的金属/高k栅极堆叠的高性能和低功耗CMOS器件技术
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346959
Y. Tateshita, J. Wang, K. Nagano, T. Hirano, Y. Miyanami, T. Ikuta, T. Kataoka, Y. Kikuchi, S. Yamaguchi, T. Ando, K. Tai, R. Matsumoto, S. Fujita, C. Yamane, R. Yamamoto, S. Kanda, K. Kugimiya, T. Kimura, T. Ohchi, Y. Yamamoto, Y. Nagahama, Y. Hagimoto, H. Wakabayashi, Y. Tagawa, M. Tsukamoto, H. Iwamoto, M. Saito, S. Kadomura, N. Nagashima
CMOS technologies using metal/high-k damascene gate stacks with uniaxial strained silicon channels were developed. Gate electrodes of HfSix and TiN were applied to nFETs and pFETs, respectively. TiN/HfO2 damascene gate stacks and epitaxial SiGe source/drains were successfully integrated for the first time. As a result, drive currents of 1050 and 710 muA/mum at Vdd=l V, Ioff=100 nA/um and Tinv=1.6 nm were obtained for the nFETs and pFETs. The further integration of pFETs on (110) substrates contributed to a higher drive current of 830 muA/mum. These performances were realized under low gate leakage currents of 0.03 A/cm2 and below
开发了基于单轴应变硅通道的金属/高k damascene栅极堆叠的CMOS技术。HfSix栅极和TiN栅极分别应用于nfet和pfet。首次成功地集成了TiN/HfO2 damascene栅极堆和外延SiGe源/漏极。结果表明,在Vdd= 1 V、Ioff=100 nA/um和Tinv=1.6 nm时,nfet和pfet的驱动电流分别为1050和710 muA/mum。pfet在(110)衬底上的进一步集成有助于达到830 muA/mum的更高驱动电流。这些性能是在0.03 A/cm2及以下的低栅漏电流下实现的
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引用次数: 24
Device Degradation Phenomena in GaN HFET Technology: Status, Mechanisms, and Opportunities 氮化镓HFET技术中的器件退化现象:现状、机制和机遇
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346798
E. Piner, S. Singhal, P. Rajagopal, R. Therrien, J. Roberts, Tao Li, A. Hanson, J. W. Johnson, I. Kizilyalli, K. Linthicum
AlGaN/GaN HFET devices demonstrate remarkable performance. For commercial acceptance of this technology, long-term device stability must meet stringent industry standards. We review the current status of GaN reliability and contrast it with the requirement for commercial viability. Results analyzing degradation pertaining to buffer leakage and gate diode forward failure is presented
AlGaN/GaN HFET器件表现出卓越的性能。为了使该技术获得商业认可,设备的长期稳定性必须符合严格的行业标准。我们回顾了GaN可靠性的现状,并将其与商业可行性的要求进行了对比。给出了缓冲漏损和栅极二极管正向失效的退化分析结果
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引用次数: 13
Thermal Select MRAM with a 2-bit Cell Capability for beyond 65 nm Technology Node 热选择MRAM具有2位单元能力,适用于65nm以上的技术节点
Pub Date : 2006-12-01 DOI: 10.1109/IEDM.2006.346986
R. Leuschner, U. Klostermann, H. Park, F. Dahmani, R. Dittrich, C. Grigis, K. Hernan, S. Mege, C. Park, M. C. Clech, G. Y. Lee, S. Bournat, L. Altimime, G. Mueller
We report on a novel thermal select (TS) MRAM with multilevel programming capability. Exchange bias pinning of a magnetic free layer (FL) was used to achieve a thermally stable bit and to reduce writing currents. This report shows experimental data for a TS-based magnetic tunnel junction (MTJ) with a size of 50 times90 nm2, the smallest size reported so far. Multilevel capability with 2 bits per 1-transistor and 1-MTJ (1T1MTJ) is also demonstrated on a 70 times 140 nm2 MTJ. With the advanced 2-bit cell concept, a 70% increase in effective bit density can be achieved at 65 nm technology node
我们报道了一种具有多层编程能力的新型热选择(TS) MRAM。利用无磁层(FL)的交换偏置钉钉实现了热稳定的钻头并减小了写入电流。本报告展示了ts基磁隧道结(MTJ)的实验数据,其尺寸为50 × 90 nm2,是迄今为止报道的最小尺寸。在70 × 140 nm2的MTJ上还演示了每1晶体管和1MTJ (1T1MTJ)具有2位的多电平能力。采用先进的2位单元概念,可以在65纳米技术节点上实现70%的有效比特密度增加
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引用次数: 10
期刊
2006 International Electron Devices Meeting
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