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2017 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)最新文献

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DC-62 GHz 4-phase 25% duty cycle quadrature clock generator DC-62 GHz 4相25%占空比正交时钟发生器
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240468
Naftali Weiss, S. Shopov, P. Schvan, P. Chevalier, A. Cathelin, S. Voinigescu
A process-, temperature-and supply-insensitive DC-to-62GHz 4-phase quadrature generator for clock signals with 25% duty cycle was manufactured in a production 55-nm SiGe BiCMOS technology. The purely digital circuit is based on a 2.5 V bipolar-CML static divider, AND gates and inverter stages, and operates with input signals from DC to 124 GHz while consuming 178 mW. Measurements were conducted with 63-GHz and 100-GHz bandwidth real-time oscilloscopes. The measured self-oscillation frequency of the static divider in the generator was 98.8 GHz, compared to 93 GHz in simulation. The measured output signals remained in quadrature up to 62 GHz. The measured duty cycle is 25–26% up to 30 GHz and increases up to 33% at 50 GHz, beyond which measurements are impacted by the limited bandwidth of the oscilloscope. The simulated duty cycle was lower than 28% up to 62 GHz.
采用55纳米SiGe BiCMOS技术生产了一款对工艺、温度和电源不敏感的dc - 62ghz 4相正交发生器,用于25%占空比的时钟信号。纯数字电路基于2.5 V双极- cml静态分频器、与门和逆变级,输入信号从DC到124 GHz,功耗为178 mW。测量用63 ghz和100 ghz带宽的实时示波器进行。静态分频器的自振荡频率为98.8 GHz,仿真结果为93 GHz。测量到的输出信号保持正交到62 GHz。测量的占空比在30 GHz时为25-26%,在50 GHz时增加到33%,超过这一范围的测量会受到示波器有限带宽的影响。模拟的占空比在62 GHz范围内低于28%。
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引用次数: 9
Ultra-low power MOSFET and tunneling FET technologies using III-V and Ge 超低功率MOSFET和隧道FET技术采用III-V和Ge
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240432
S. Takagi, M. Takenaka
CMOS and tunneling FETs (TFETs) utilizing low effective mass III-V/Ge channels on Si substrates is expected to be one of the promising device options for low power integrated systems, because of the enhanced carrier transport and tunneling properties. In this paper, we present viable device and process technologies of Ge/III-V MOSFETs and TFETs on the Si CMOS platform. Heterogeneous integration to form these new materials on Si is a common key issue. The wafer bonding technologies are utilized for this purpose. We demonstrate the operation and the electrical characteristics of a variety of III-V/Ge MOSFETs and TFETs including the hetero-structures.
利用Si衬底上的低有效质量III-V/Ge通道的CMOS和隧道效应管(tfet)有望成为低功耗集成系统的有前途的器件选择之一,因为它增强了载流子传输和隧道特性。在本文中,我们提出了可行的器件和工艺技术的Ge/III-V mosfet和tfet在Si CMOS平台上。在硅上形成这些新材料的异质集成是一个共同的关键问题。晶圆键合技术用于此目的。我们演示了各种III-V/Ge mosfet和tfet的工作和电气特性,包括异质结构。
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引用次数: 1
MMICs for next generation radar 用于下一代雷达的mmic
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240442
A. Darwish, Ken Mcknight, J. Penn, E. Viveiros, A. Hedden, H. A. Hung
The rapid progress towards 5G wireless systems is accelerating the development of mm-wave semiconductor processes, broadband circuits, and system technologies. Similarly, next-generation radar is being expanded and redefined. Legacy radar systems are nearing the end of their life cycle and systems developers are aiming to upgrade their capability while reducing cost, size, and weight. Radar systems have requirements that result in technical circuit design challenges including high power, broadband, and low distortion. This paper focuses on MMIC design challenges specific to the design of next-generation radars that will operate in a crowded wireless environment, allow spectrum sharing, and dynamic frequency selection. Simulated and measured data are presented.
5G无线系统的快速发展正在加速毫米波半导体工艺、宽带电路和系统技术的发展。同样,下一代雷达正在被扩展和重新定义。传统雷达系统正接近其生命周期的终点,系统开发商的目标是在降低成本、尺寸和重量的同时升级其能力。雷达系统的要求导致了技术电路设计的挑战,包括高功率、宽带和低失真。本文重点介绍了下一代雷达设计中的MMIC设计挑战,这些雷达将在拥挤的无线环境中运行,允许频谱共享和动态频率选择。给出了仿真和实测数据。
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引用次数: 0
InAlN/GaN HEMT using microwave annealing for low temperature ohmic contact formation 采用微波退火技术制备InAlN/GaN HEMT低温欧姆接触
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240448
Lung-I Chou, Li-Yi Peng, Hsiang-Chun Wang, H. Chiu, How-Ting Wang, Dong-Long Chiang, J. Chyi
In this letter, a microwave annealing (MWA) method for Ohmic contact applied to InAlN/GaN high electron mobility transistor (HEMT) is the first time. The feature of MWA method is low operating temperature (450°C∼550°C). By using this technique, MWA-HEMT can achieve a low Ohmic contact resistance and smoother Ohmic contact surface than traditional rapid thermal annealing (RTA). The situation of Indium diffusion and device gate leakage current has been improved by this technique. Moreover, the reliability and RF performance of MWA-HEMT has a better result than RTA-HEMT.
本文首次将微波退火(MWA)方法应用于InAlN/GaN高电子迁移率晶体管(HEMT)。MWA法的特点是工作温度低(450°C ~ 550°C)。与传统的快速热退火(RTA)相比,MWA-HEMT可以实现低欧姆接触电阻和更光滑的欧姆接触表面。该技术改善了铟扩散和器件栅漏电流的状况。此外,MWA-HEMT的可靠性和射频性能都优于RTA-HEMT。
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引用次数: 2
Silicon-photonics-based coherent optical subassembly (COSA) for ultra-compact coherent transceiver 超紧凑相干收发器用硅光子学相干光学组件(COSA)
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240426
K. Kikuchi, K. Tsuzuki, S. Kamei, S. Yamanaka, S. Asakawa, T. Itoh, Y. Nasu, K. Takeda, K. Honda, Y. Kawamura, M. Jizodo, Masayuki Takahashi, M. Usui, H. Mawatari, T. Saida
We actualized a silicon photonics (SiPh)-based coherent optical subassembly (COSA) with a compact and low-height package for the next-generation transceiver form factors. We integrated optical functions required for transmitting and receiving digital coherent optical signals into a single SiPh chip. The COSA is applicable to 100-Gbps dual-polarization quadrature phase shift keying and 200Gbps dual polarization 16-quadrature amplitude modulation transmissions.
我们实现了一种基于硅光子学(SiPh)的相干光学子组件(COSA),具有紧凑和低高度的封装,适用于下一代收发器的外形因素。我们将发送和接收数字相干光信号所需的光学功能集成到单个SiPh芯片中。COSA适用于100gbps双极化正交移相键控和200Gbps双极化16正交调幅传输。
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引用次数: 4
Layout optimizations for THz integrated circuit design in bulk nanometer CMOS 块体纳米CMOS中太赫兹集成电路的布局优化
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240435
W. Steyaert, P. Reynaert
Scaling in CMOS has increased the attainable operational frequencies, while greatly increasing the transistor's parasitic modeling complexity. Additionally, the performance of the ever-smaller on-chip passives for mm-wave and THz circuits is being degraded by numerous process requirements and limitations, such as high densities of dummy metals. This work discusses the main transistor layout trade-offs for high-frequency performance in both 40nm and 28nm bulk CMOS. The impact of dummy metals on a single-turn on-chip inductor for mm-wave/THz frequencies is presented, which shows that low dummy metal densities around critical high-frequency passives are essential to minimize degradation in performance.
CMOS中的缩放增加了可实现的工作频率,同时大大增加了晶体管的寄生建模复杂性。此外,用于毫米波和太赫兹电路的越来越小的片上无源的性能受到许多工艺要求和限制的影响,例如高密度的虚拟金属。本工作讨论了在40nm和28nm CMOS中,为了实现高频性能的主要晶体管布局权衡。介绍了虚拟金属对毫米波/太赫兹频率单匝片上电感器的影响,表明在关键高频无源周围低虚拟金属密度对于最小化性能下降至关重要。
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引用次数: 1
A reconfigurable S-/X-band GaN cascode LNA MMIC 一个可重构的S / x波段GaN级联LNA MMIC
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240424
Kevin W. Kobayashi, Charles Campbell, Cathy Lee, Justin Gallagher, John Shust, Andrew Botelho
This paper reports on a frequency agile GaN LNA MMIC that can be reconfigured for both S- and X-band extending operation over multiple octaves of frequency. The LNA is based on a 0.15um GaN HEMT technology and utilizes GaN FET switches to tune the LNA for 3–3.5 GHz Sband and 9–11 GHz X-band operation. Switch tuned for Sband, the amplifier achieves 15 dB of gain, NF ranging from 0.9–1.3 dB, an input return-loss better than 10 dB, and an IP3 of 29.2–32.8 dBm. Switch tuned for X-band, the amplifier achieves a gain of 13.5–14.5 dB, a NF ranging from 1.4–2.2 dB, an input return-loss from 11–12 dB, and an IP3 of 29.534.5 dBm. To the authors' knowledge, this work is the first band reconfigurable GaN LNA reported up to X-band frequencies. The LNA demonstrates comparable or better combined NF & input return-loss performance than previous single-band optimized GaN LNAs reported at X-band.
本文报道了一种频率灵活的GaN LNA MMIC,它可以在多个倍频的频率上重新配置为S和x波段扩展操作。LNA基于0.15um GaN HEMT技术,并利用GaN FET开关对LNA进行3-3.5 GHz频段和9-11 GHz x频段的调谐。开关调谐为频带,放大器获得15 dB增益,NF范围为0.9-1.3 dB,输入回波损耗优于10 dB, IP3为29.2-32.8 dBm。开关调谐为x波段,放大器的增益为13.5-14.5 dB, NF范围为1.4-2.2 dB,输入回波损耗为11-12 dB, IP3为29.534.5 dBm。据作者所知,这项工作是第一个在x波段频率上可重构的GaN LNA。与先前在x波段报道的单波段优化GaN LNA相比,LNA表现出相当或更好的NF和输入回报损失组合性能。
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引用次数: 17
A 660 GHz up-converter for THz communications 用于太赫兹通信的660ghz上变频器
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240460
W. Deal, K. Leong, A. Zamora, B. Gorospe, K. Nguyen, X. Mei
This paper reports on a 660 GHz transmitter using InP HEMT technology. The transmitter features a x18 multiplier chain, sub-harmonic mixer, and a power amplifier at the output. Tradeoffs in the upconverter topology are discussed, including transmit noise power, RF filtering, and phase noise. With SSPA at the output, this up-converter achieves the highest reported power to date at this frequency. This significantly advances the technology required for submillimeter wave communication.
本文报道了一种采用InP HEMT技术的660ghz发射机。发射器具有x18乘法器链,次谐波混频器和输出功率放大器。讨论了上变频器拓扑的权衡,包括发射噪声功率、射频滤波和相位噪声。在输出SSPA的情况下,该上变频器在该频率下实现了迄今为止最高的报告功率。这极大地推进了亚毫米波通信所需的技术。
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引用次数: 12
The interplay of thermal, time and Poole-Frenkel emission on the trap-based physical modeling of GaN HEMT drain characteristics 热、时间和Poole-Frenkel发射对GaN HEMT漏极特性阱物理建模的影响
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240427
Chung-hsu Chen, R. Sadler, David Wang, Daniel Hou, Yuefei Yang, W. Yau, Shiguang Wang, Mo Wu, Tingyi Wu, Rex Chen, Benjamin Ou
To model drain IV characteristics, the temperature dependence is important for GaN HEMT. We show that the time dependence should also be included in the modeling approach. In this paper, we use the trap information obtained from current transient spectroscopy (CTS) to create a 3D plot of Ids-Vds-time(I-V-t). This gives a more realistic description for time-domain pulsed IV behavior. The controversial question of whether the pulsed IV/RF is a trapping effect or a thermal effect is analyzed. The Poole-Frenkel emission-based time-dependent trapping model is proposed to describe the GaN HEMT memory effects (kink effect and knee walkout). To our knowledge, this is the first model offered to describe the “soft” (or degraded) knee region of the GaN HEMT IV curves.
为了模拟漏极IV特性,温度依赖性对GaN HEMT很重要。我们表明,时间依赖性也应包括在建模方法中。在本文中,我们使用从电流瞬态光谱(CTS)获得的陷阱信息来创建Ids-Vds-time(I-V-t)的三维图。这给了一个更现实的描述时域脉冲静脉行为。分析了脉冲IV/RF是捕获效应还是热效应这一有争议的问题。提出了基于Poole-Frenkel发射的时间相关捕获模型来描述GaN HEMT记忆效应(弯曲效应和膝关节脱落)。据我们所知,这是第一个用于描述GaN HEMT IV曲线的“软”(或退化)膝关节区域的模型。
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引用次数: 1
SiGe BiCMOS processes for commercial RF front-end-module applications 商用射频前端模块应用的SiGe BiCMOS工艺
Pub Date : 2017-10-01 DOI: 10.1109/CSICS.2017.8240457
E. Preisler, K. Moen, J. Zheng, P. Hurwitz, S. Chaudhry, M. Racanelli
Over the past decade, SiGe BiCMOS processes have become a mainstay in the Front-End-Module (FEM) of commercial radio products. SiGe BiCMOS processes offer an excellent compromise between the low cost of commodity CMOS and the high performance of III-V based technologies. This allows them to address many of the difficult specification challenges of FEM components in cellular phones and other complex radio systems at a cost level that is acceptable for very high volume products. In this paper several examples of applications of SiGe BiCMOS processes in FEMs are given, including power amplifiers, low-noise amplifiers, RF switches and combinations thereof. Further, the utility of SiGe BiCMOS to address emerging commercial applications at higher frequencies is discussed.
在过去的十年中,SiGe BiCMOS工艺已成为商业无线电产品前端模块(FEM)的支柱。SiGe BiCMOS工艺在商品CMOS的低成本和基于III-V的技术的高性能之间提供了一个很好的折衷。这使他们能够以非常大批量产品可接受的成本水平解决蜂窝电话和其他复杂无线电系统中FEM组件的许多困难规格挑战。本文给出了SiGe BiCMOS工艺在功率放大器、低噪声放大器、射频开关及其组合等fem中的应用实例。此外,还讨论了SiGe BiCMOS在更高频率下解决新兴商业应用的效用。
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引用次数: 0
期刊
2017 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)
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