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Electric-field induced F− migration in self-aligned InGaAs MOSFETs and mitigation 自对准InGaAs mosfet中电场诱导的F−迁移及其抑制
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838338
Xiaowei Cai, Jianqiang Lin, D. Antoniadis, J. D. del Alamo
We report, for the first time, a prominent but fully reversible enhancement in transconductance after applying positive gate stress to self-aligned InGaAs MOSFETs. We attribute this to electric-field-induced migration of fluorine ions (F−) introduced during the RIE gate recess process. F− is known to passivate Si donors in InAlAs. In our device structure, an n-InAlAs ledge facilitates the link from the contacts to the intrinsic device. We use secondary ion mass spectroscopy (SIMS) to independently confirm that our process leads to F pile up at the n-InAlAs layer. Transmission line model (TLM) structures confirm F−-induced donor passivation. The understanding derived has lead us to redesign our InGaAs MOSFETs by eliminating n-InAlAs layers and instead use an n-InP ledge. The new device design not only exhibits greatly improved electrical stability but also record performance.
我们首次报道,在对自对准InGaAs mosfet施加正栅应力后,跨导性显著但完全可逆的增强。我们将此归因于电场诱导的迁移氟离子(F−)在RIE栅极凹槽过程中引入。已知F−会钝化InAlAs中的Si供体。在我们的设备结构中,n-InAlAs平台促进了从触点到固有设备的链接。我们使用次级离子质谱(SIMS)独立地证实了我们的工艺导致了n-InAlAs层的F堆积。传输线模型(TLM)结构证实了F−诱导供体钝化。由此得出的理解使我们重新设计了InGaAs mosfet,消除了n-InAlAs层,转而使用n-InP壁架。新设计的器件不仅表现出极大的电气稳定性,而且表现出创纪录的性能。
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引用次数: 5
Performance projection of III-V ultra-thin-body, FinFET, and nanowire MOSFETs for two next-generation technology nodes III-V超薄体、FinFET和纳米线mosfet在两个下一代技术节点上的性能预测
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838515
M. Rau, E. Caruso, D. Lizzit, P. Palestri, D. Esseni, A. Schenk, L. Selmi, M. Luisier
Using state-of-the-art simulation tools ranging from semi-classical Monte-Carlo to full-quantum atomistic approaches, the competitiveness of III-V compounds for next-generation high-performance logic switches is confirmed. A planar double-gate ultra-thin-body (DG-UTB), a triple-gate FinFET, and a gate-all-around nanowire (NW) transistor have been designed according to the ITRS specifications for two technology nodes with physical gate lengths of Lg=15 nm and 10.4 nm. A thorough performance comparison of digital and analog figures of merit at these nodes reveals that for Lg=15 nm, the performance of planar and 3-D architectures is comparable. At LG=10.4 nm, the III-V NW promises the highest performance, especially when lowering the supply voltage from 0.59 V to 0.50 V. It also significantly outperforms its strained silicon counterpart. Finally, the effects of series resistance combined with interface traps, surface roughness, alloy scattering, and electron-phonon interactions have been found to deteriorate the III-V ballistic ON-current by 50–60%.
利用最先进的模拟工具,从半经典蒙特卡罗到全量子原子方法,III-V化合物在下一代高性能逻辑开关中的竞争力得到了证实。根据ITRS规范,设计了物理栅极长度分别为Lg=15 nm和10.4 nm的平面双栅超薄体(DG-UTB)、三栅极FinFET和栅极全能纳米线(NW)晶体管。通过对这些节点上的数字和模拟性能进行全面的性能比较,可以发现对于Lg=15 nm,平面和3d架构的性能是相当的。在LG=10.4 nm时,III-V NW保证了最高的性能,特别是当电源电压从0.59 V降低到0.50 V时。它的性能也明显优于张力硅。最后,发现串联电阻结合界面陷阱、表面粗糙度、合金散射和电子-声子相互作用的影响使III-V弹道导通电流降低了50-60%。
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引用次数: 25
Carbon nanotube complementary logic with low-temperature processed end-bonded metal contacts 具有低温加工末端键合金属触点的碳纳米管互补逻辑
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838350
Jianshi Tang, Q. Cao, D. Farmer, G. Tulevski, Shu-Jen Han
CNT-based complementary logic using low-temperature processed end-boned metal contacts are demonstrated. This new form of end-bonded contact is made by carbon dissolution into metal contacts with high carbon solubility (e.g., Ni and Co), which requires only low annealing temperature (400−600 °C). As-fabricated end-bonded Ni contacts serve as robust p-type contacts to CNTs and perform better than standard Pd side-bonded contacts at scaled dimensions. In addition, stable NFETs are converted from PFETs using Al2O3 as an n-type physicochemical doping layer. CMOS inverters are further built with end-bonded contacts for both PFETs and NFETs, featuring the smallest contact size thus far for CNT inverters. These new findings could pave the way to realizing CNT-based scalable CMOS technology.
基于碳纳米管的互补逻辑使用低温加工端骨金属触点进行演示。这种新形式的端键触点是通过碳溶解到具有高碳溶解度的金属触点(例如Ni和Co)中制成的,只需要较低的退火温度(400 - 600°C)。制备的端键合Ni触点作为坚固的p型触点与碳纳米管接触,并且在比例尺寸下比标准的Pd侧键合触点性能更好。此外,使用Al2O3作为n型物理化学掺杂层,从pfet转换成稳定的nfet。CMOS逆变器进一步构建了用于pfet和nfet的端键合触点,具有迄今为止碳纳米管逆变器最小的触点尺寸。这些新发现可能为实现基于碳纳米管的可扩展CMOS技术铺平道路。
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引用次数: 11
Novel stacked CMOS image sensor with advanced Cu2Cu hybrid bonding 采用先进Cu2Cu混合键合技术的新型堆叠CMOS图像传感器
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838375
Y. Kagawa, N. Fujii, K. Aoyagi, Y. Kobayashi, S. Nishi, N. Todaka, S. Takeshita, J. Taura, H. Takahashi, Y. Nishimura, K. Tatani, M. Kawamura, H. Nakayama, T. Nagano, K. Ohno, H. Iwamoto, S. Kadomura, T. Hirayama
We have successfully mass-produced novel stacked back-illuminated CMOS image sensors (BI-CIS). In the new CIS, we introduced advanced Cu2Cu hybrid bonding that we had developed. The electrical test results showed that our highly robust Cu2Cu hybrid bonding achieved remarkable connectivity and reliability. The performance of image sensor was also investigated and our novel stacked BI-CIS showed favorable results.
我们成功量产了新型堆叠背照CMOS图像传感器(BI-CIS)。在新的CIS中,我们引入了我们开发的先进的Cu2Cu杂化键。电学测试结果表明,我们的高鲁棒性Cu2Cu混合键合取得了显著的连通性和可靠性。对图像传感器的性能也进行了研究,我们的新型堆叠BI-CIS显示了良好的效果。
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引用次数: 84
Wide bandgap (WBG) power devices and their impacts on power delivery systems 宽带隙功率器件及其对电力输送系统的影响
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838457
A. Huang
Wide bandgap (WBG) power semiconductor devices have the capability to reach higher voltage, higher frequency and higher temperature compared with silicon based power devices. These capabilities have the potentials to revolutionize the way we deliver and manage power in the future. This paper reviews the WBG progress and their potential transformative impacts on low voltage, medium voltage and high voltage power delivery systems.
与硅基功率器件相比,宽带隙功率半导体器件具有更高的电压、更高的频率和更高的温度。这些能力有可能彻底改变我们未来交付和管理电力的方式。本文综述了WBG的进展及其对低压、中压和高压输电系统的潜在变革性影响。
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引用次数: 35
High-mobility TFT and enhanced luminescence utilizing nucleation-controlled GeSn growth on transparent substrate for monolithic optoelectronic integration 利用核控GeSn生长在透明衬底上的高迁移率TFT和增强发光,用于单片光电集成
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838470
H. Oka, M. Koyama, T. Tomita, T. Amamoto, K. Tominaga, S. Tanaka, T. Hosoi, T. Shimura, H. Watanabe
Record-high mobility Ge-based TFT (μfe: 423 cm2/Vs) and significant enhancement of near-infrared (NIR) luminescence (×54 Ge bulk) were demonstrated with single-crystalline GeSn layer on transparent substrate grown by a novel liquid-phase crystallization technique. Our GeSn growth scheme is fully compatible with the conventional CMOS process and can provide high-quality tensile-strained p- and n-type GeSn layers, thus paving the way for monolithic optoelectronic integration available not only for optical communications but also for NIR imaging and biochemical sensing with wide wavelength range.
采用新型液相结晶技术在透明衬底上生长单晶GeSn层,证明了创纪录的高迁移率(μfe: 423 cm2/Vs)和近红外(NIR)发光(×54 Ge bulk)的显著增强。我们的GeSn生长方案与传统的CMOS工艺完全兼容,可以提供高质量的拉伸应变p型和n型GeSn层,从而为单片光电集成铺平了道路,不仅可用于光通信,还可用于近红外成像和宽波长范围的生化传感。
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引用次数: 3
Comprehensive model for progressive breakdown in nFETs and pFETs nfet和pfet渐进击穿的综合模型
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838522
S. Lombardo, E. Wu, J. Stathis
Through comparison with a large data set, we show that progressive breakdown (PBD) of gate oxides is described by a physical model coupling carrier energy dissipation to electromigration producing the PBD growth. Dependence on temperature, voltage, carrier type, oxide thickness, and the statistics are well described in a consistent framework.
通过与大型数据集的比较,我们发现栅极氧化物的递进击穿(PBD)是由耦合载流子能量耗散和导致PBD生长的电迁移的物理模型描述的。对温度、电压、载流子类型、氧化物厚度和统计数据的依赖性在一致的框架中得到了很好的描述。
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引用次数: 3
FOI FinFET with ultra-low parasitic resistance enabled by fully metallic source and drain formation on isolated bulk-fin FOI FinFET具有超低寄生电阻,在隔离体翅片上形成全金属源极和漏极
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838438
Qingzhu Zhang, H. Yin, Jun Luo, Hong Yang, Lingkuan Meng, Yudong Li, Zhenhua Wu, Yanbo Zhang, Yongkui Zhang, Changliang Qin, Junjie Li, Jianfeng Gao, Guilei Wang, W. Xiong, J. Xiang, Zhangyu Zhou, S. Mao, Gaobo Xu, Jinbiao Liu, Y. Qu, Tao Yang, Junfeng Li, Qiuxia Xu, Jiang Yan, Huilong Zhu, Chao Zhao, Tianchun Ye
The large parasitic resistance has become a critical limiting factor to on current (ION) of FinFET and nanowire devices. Fully metallic source and drain (MSD) process is one of the most promising solutions but it often suffers from intolerant junction leakage in bulk FETs. In this paper, fully MSD process on fin-on-insulator (FOI) FinFET is investigated extensively for the first time. By forming fully Ni(Pt) silicide on physically isolated fins, about 90% reduction in contacted resistivities (Rcs) and 55% reduction in sheet resistances (Rss) are achieved without obvious junction leakage degradation. As a consequence, Ion of transistor, with gate length (Lg) of 20nm, is increased 30 times, up to 547μA/μm for NMOS and 324 μA/μm for PMOS, respectively. Excellent controls of SCE and channel leakage with 47% DIBL, 32% SS and 2.5% device leakages reductions over the counterpart of conventional bulk FinFETs are also obtained. Meanwhile, the fully MSD process induces clear tensile stress into narrow fin-channel, resulting in enhanced electron mobility in NMOS. A further improvement in PMOS drive ability (486μA/μm) by using Schottky barrier source and drain (SBSD) technology is also explored.
较大的寄生电阻已成为限制FinFET和纳米线器件导通电流(ION)的关键因素。全金属源极漏极(MSD)工艺是最有前途的解决方案之一,但在块状场效应管中存在结漏不容忍的问题。本文首次对翅片上绝缘子(FOI) FinFET的全MSD工艺进行了广泛的研究。通过在物理隔离的翅片上形成完全的Ni(Pt)硅化物,在没有明显的结漏退化的情况下,接触电阻(Rcs)降低了约90%,片电阻(Rss)降低了55%。因此,栅极长度(Lg)为20nm的晶体管的离子提高了30倍,NMOS和PMOS分别达到547μA/μm和324 μA/μm。与传统的块状finfet相比,SCE和通道泄漏的控制也很好,DIBL减少47%,SS减少32%,器件泄漏减少2.5%。同时,全MSD工艺在狭窄的鳍状通道中产生了明显的拉伸应力,从而提高了NMOS中的电子迁移率。利用肖特基势垒源漏(SBSD)技术进一步提高PMOS驱动性能(486μA/μm)。
{"title":"FOI FinFET with ultra-low parasitic resistance enabled by fully metallic source and drain formation on isolated bulk-fin","authors":"Qingzhu Zhang, H. Yin, Jun Luo, Hong Yang, Lingkuan Meng, Yudong Li, Zhenhua Wu, Yanbo Zhang, Yongkui Zhang, Changliang Qin, Junjie Li, Jianfeng Gao, Guilei Wang, W. Xiong, J. Xiang, Zhangyu Zhou, S. Mao, Gaobo Xu, Jinbiao Liu, Y. Qu, Tao Yang, Junfeng Li, Qiuxia Xu, Jiang Yan, Huilong Zhu, Chao Zhao, Tianchun Ye","doi":"10.1109/IEDM.2016.7838438","DOIUrl":"https://doi.org/10.1109/IEDM.2016.7838438","url":null,"abstract":"The large parasitic resistance has become a critical limiting factor to on current (ION) of FinFET and nanowire devices. Fully metallic source and drain (MSD) process is one of the most promising solutions but it often suffers from intolerant junction leakage in bulk FETs. In this paper, fully MSD process on fin-on-insulator (FOI) FinFET is investigated extensively for the first time. By forming fully Ni(Pt) silicide on physically isolated fins, about 90% reduction in contacted resistivities (Rcs) and 55% reduction in sheet resistances (Rss) are achieved without obvious junction leakage degradation. As a consequence, Ion of transistor, with gate length (Lg) of 20nm, is increased 30 times, up to 547μA/μm for NMOS and 324 μA/μm for PMOS, respectively. Excellent controls of SCE and channel leakage with 47% DIBL, 32% SS and 2.5% device leakages reductions over the counterpart of conventional bulk FinFETs are also obtained. Meanwhile, the fully MSD process induces clear tensile stress into narrow fin-channel, resulting in enhanced electron mobility in NMOS. A further improvement in PMOS drive ability (486μA/μm) by using Schottky barrier source and drain (SBSD) technology is also explored.","PeriodicalId":186544,"journal":{"name":"2016 IEEE International Electron Devices Meeting (IEDM)","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123785726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
Understanding cycling endurance in perpendicular spin-transfer torque (p-STT) magnetic memory 垂直自旋传递转矩(p-STT)磁记忆的循环耐久性研究
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838468
R. Carboni, S. Ambrogio, Wei Chen, M. Siddik, J. Harms, Andy Lyle, Witold Kula, Gurtej S. Sandhu, Daniele Ielmini
Perpendicular spin-transfer torque (p-STT) memory is attracting an increasing interest as storage class memory (SCM) or static/dynamic RAM replacement. In these applications, high speed and extended endurance are essential and sometimes conflicting requirements. This work addresses cycling endurance of p-STT devices by pulsed experiments and modeling of the dielectric breakdown. We present a new endurance model able to predict the STT endurance as a function of applied voltage, pulse width, pulse polarity and delay time. The trade-off between write time and endurance for RAM replacement is finally addressed.
垂直自旋传递扭矩(p-STT)存储器作为存储类存储器(SCM)或静态/动态RAM替代品正引起越来越多的兴趣。在这些应用中,高速和延长的耐久性是必不可少的,有时是相互冲突的要求。本工作通过脉冲实验和电介质击穿建模来研究p-STT器件的循环耐久性。我们提出了一个新的寿命模型,可以预测STT寿命作为施加电压、脉冲宽度、脉冲极性和延迟时间的函数。最后解决了RAM替换的写时间和持久性之间的权衡。
{"title":"Understanding cycling endurance in perpendicular spin-transfer torque (p-STT) magnetic memory","authors":"R. Carboni, S. Ambrogio, Wei Chen, M. Siddik, J. Harms, Andy Lyle, Witold Kula, Gurtej S. Sandhu, Daniele Ielmini","doi":"10.1109/IEDM.2016.7838468","DOIUrl":"https://doi.org/10.1109/IEDM.2016.7838468","url":null,"abstract":"Perpendicular spin-transfer torque (p-STT) memory is attracting an increasing interest as storage class memory (SCM) or static/dynamic RAM replacement. In these applications, high speed and extended endurance are essential and sometimes conflicting requirements. This work addresses cycling endurance of p-STT devices by pulsed experiments and modeling of the dielectric breakdown. We present a new endurance model able to predict the STT endurance as a function of applied voltage, pulse width, pulse polarity and delay time. The trade-off between write time and endurance for RAM replacement is finally addressed.","PeriodicalId":186544,"journal":{"name":"2016 IEEE International Electron Devices Meeting (IEDM)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133726783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
Resonant-tunneling-diode terahertz oscillators and applications 共振隧道二极管太赫兹振荡器及其应用
Pub Date : 2016-12-01 DOI: 10.1109/IEDM.2016.7838504
M. Asada, S. Suzuki
We report on our recent results of resonant tunneling diodes oscillating in the terahertz frequency range, including the structures for high frequency oscillation up to 1.92 THz at room temperature, high output power, high-speed direct modulation for wireless communication, and frequency tenability for spectroscopy.
我们报告了我们在太赫兹频率范围内振荡的谐振隧道二极管的最新成果,包括室温下高达1.92太赫兹的高频振荡结构,高输出功率,无线通信的高速直接调制以及光谱的频率可维持性。
{"title":"Resonant-tunneling-diode terahertz oscillators and applications","authors":"M. Asada, S. Suzuki","doi":"10.1109/IEDM.2016.7838504","DOIUrl":"https://doi.org/10.1109/IEDM.2016.7838504","url":null,"abstract":"We report on our recent results of resonant tunneling diodes oscillating in the terahertz frequency range, including the structures for high frequency oscillation up to 1.92 THz at room temperature, high output power, high-speed direct modulation for wireless communication, and frequency tenability for spectroscopy.","PeriodicalId":186544,"journal":{"name":"2016 IEEE International Electron Devices Meeting (IEDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130486730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
期刊
2016 IEEE International Electron Devices Meeting (IEDM)
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