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2013 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S)最新文献

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Performance characteristics of 14 nm near threshold MCML circuits 14nm近阈值MCML电路的性能特性
Alexander E. Shapiro, E. Friedman
Near threshold circuits (NTC) are an attractive and promising technology that provides significant power savings with some delay penalty. The feasibility of NTC technology with MOS Current Mode Logic (MCML) based on a 14 nm FinFET process node is examined in this paper. A 32 bit Kogge Stone adder is chosen as a demonstration vehicle for simulation and feasibility analysis. MCML yields enhanced power efficiency when operated with a 100% activity factor above 1 GHz as compared to CMOS. Standard CMOS does not achieve frequencies above 9 GHz without a dramatic increase in power consumption. MCML is most efficient beyond 9 GHz over a wide range of activity factors. MCML also exhibits significantly lower noise levels as compared to standard CMOS. The results of the analysis demonstrate that pairing NTC and MCML is efficient when operating at high frequencies and activity factors.
近阈值电路(NTC)是一种有吸引力和有前途的技术,它提供了显著的功耗节约和一些延迟损失。本文研究了基于14nm FinFET工艺节点的MOS电流模式逻辑(MCML) NTC技术的可行性。选择32位Kogge Stone加法器作为演示载体进行仿真和可行性分析。与CMOS相比,MCML在1 GHz以上的100%活动因数下工作时,功率效率更高。标准CMOS无法在不大幅增加功耗的情况下实现9 GHz以上的频率。在广泛的活动因子范围内,MCML在9 GHz以上是最有效的。与标准CMOS相比,MCML还表现出明显较低的噪声水平。分析结果表明,在高频率和高活度因素下,NTC和MCML配对是有效的。
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引用次数: 4
Ultra low power 2-tier 3D stacked sub-threshold H.264 intra frame encoder 超低功耗2层3D堆叠亚阈值H.264帧内编码器
S. Samal, Kiyoung Kim, Youngchan Kim, Taesung Kim, Hyuk-Jae Lee, Taewhan Kim, S. Lim
Digital circuits used in sensor networks require longer battery life and do not demand a fast frequency of operation. Sub-threshold circuits for such applications are an attractive option. Three dimensional ICs (3DICs) on the other hand is an emerging technology which helps in miniaturization and reduction in interconnects, resulting in power saving and performance improvement. Several works on sub-threshold circuits and TSV based 3DICs have been studied independently but none have studied the impact of 3D stacking of sub-threshold circuits. We design and study an ultra-low power 2-tier 3D sub-threshold implementation of H.264 intra frame encoder that encodes video frames. The encoder consumes 0.73μW power at 16.13 KHz clock frequency for a typical application of encoding a Common Image Format (CIF) frame. The motivation is to assess the feasibility of the use of extreme low power video encoders in image sensor based sensor networks. Low power operation is highly beneficial to such unattended sensor networks by extending their battery life. Sub-threshold design helps us in this respect while 3D stacking minimizes footprint area, helps in off-chip to on-chip memory integration and improves timing performance.
用于传感器网络的数字电路需要更长的电池寿命,并且不需要快速的工作频率。亚阈值电路对于这样的应用是一个有吸引力的选择。另一方面,三维集成电路(3dic)是一种新兴技术,有助于小型化和减少互连,从而节省电力和提高性能。目前已有一些关于亚阈值电路和基于TSV的三维电路的独立研究,但没有研究过亚阈值电路的三维叠加的影响。我们设计并研究了H.264帧内编码器的超低功耗2层3D亚阈值实现,用于视频帧的编码。对于编码通用图像格式(CIF)帧的典型应用,该编码器在16.13 KHz时钟频率下消耗0.73μW功率。目的是评估在基于图像传感器的传感器网络中使用极低功耗视频编码器的可行性。低功耗运行对这种无人值守传感器网络非常有利,可以延长其电池寿命。亚阈值设计在这方面帮助我们,而3D堆叠可以最大限度地减少占用面积,有助于片外到片上存储器的集成,并提高时序性能。
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引用次数: 1
Thermal stability of ultra-thin InGaAs-on-insulator substrates 绝缘体上超薄ingaas衬底的热稳定性
N. Daix, L. Czornomaz, D. Caimi, C. Rossel, M. Sousa, J. Fompeyrine
Ultra-thin-body on buried oxide (UTBB) InGaAs are promising layers for the next generation of transistors. One way to fabricate InGaAs layer on Si or SiGe substrates is the direct wafer bonding technique with ion implantation and thermal splitting. We have investigated the bonding energy of two possible candidates for the buried oxide (BOX), Al2O3 and SiO2, between room temperature and 450°C. Then we have compared the properties of InAlAs, InP and InGaAs buffers for the implantation and splitting processes.
超薄体埋氧化物(UTBB) InGaAs是下一代晶体管的有前途的层。在Si或SiGe衬底上制备InGaAs层的一种方法是采用离子注入和热分裂的直接晶圆键合技术。我们研究了两种可能的埋藏氧化物(BOX)候选者Al2O3和SiO2在室温到450℃之间的键能。然后比较了InAlAs、InP和InGaAs缓冲液在注入和分裂过程中的性能。
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引用次数: 1
Global variability of UTBB MOSFET in subthreshold 亚阈值下UTBB MOSFET的全局变异性
S. Makovejev, B. K. Esfeh, F. Andrieu, J. Raskin, D. Flandre, V. Kilchytska
Global variability of UTBB MOSFETs in subthresh-old and off regimes is analyzed. Variability of the off-state drain current, subthreshold slope, DIBL, gate leakage current, threshold voltage and their correlations are considered. It is demonstrated that subthreshold drain current variability is not only dependent on the threshold voltage variability, but the effective body factor (incorporating short-channel effects) must also be taken into account.
分析了UTBB mosfet在亚阈值和关断状态下的全局变异性。考虑了断态漏极电流、亚阈值斜率、DIBL、栅极漏电流、阈值电压的变异性及其相关关系。结果表明,亚阈值漏极电流变异性不仅取决于阈值电压变异性,而且还必须考虑有效体因子(包括短通道效应)。
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引用次数: 1
Dual threshold voltage adder for robust sub-Vt operation in 65nm technology 双阈值电压加法器,用于65nm技术的鲁棒亚vt操作
Meenatchi Jagasivamani, M. Bajura, M. Fritze
With the increased focus on power efficiency, there is a push towards lowering the supply voltage and operating the design in the sub-threshold regime. While this is good for lowering the active power, it makes certain circuits more susceptible to single-event effects due to poor Ioff/Ion ratio. The 28-T mirror adder is a key building block for many arithmetic and digital signal processing systems. Yet, the mirror full adder is vulnerable to failure in sub-threshold operation due to its long chain of transistors in series and xor-parallel configuration. By replacing the transistors in the vulnerable configuration with low-Vt transistors, we are able to strengthen the circuit for sub-threshold operation. In this paper, we look at the effect of a dual-Vt version of the basic mirror adder circuit in the 65nm technology node.
随着对功率效率的日益关注,有一种趋势是降低电源电压并在亚阈值状态下操作设计。虽然这有利于降低有功功率,但由于较差的off/Ion比率,它使某些电路更容易受到单事件效应的影响。28-T镜像加法器是许多算术和数字信号处理系统的关键组成部分。然而,镜像全加法器由于其长链晶体管的串联和异或并联结构,在亚阈值操作中容易出现故障。通过用低vt晶体管替换易损结构中的晶体管,我们能够加强亚阈值工作电路。在本文中,我们研究了双vt版本的基本镜像加法器电路在65nm技术节点上的效果。
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引用次数: 3
Dual-threshold design of sub-threshold circuits 亚阈值电路的双阈值设计
Jia Yao, V. Agrawal
Dual threshold voltage (Vth) design is a common method for reducing leakage power in above-threshold circuits. This research shows that it is also effective in reducing energy per cycle of sub-threshold circuits. We first study the single-Vth design theoretically and by simulations, and find that the energy per cycle is independent of threshold voltage. However, in a dual-Vth design, the energy per cycle depends on both threshold voltage and supply voltage. We propose a framework to further reduce energy per cycle below what is possible with a single Vth. Given a nominal value for Vth, we determine an optimal supply voltage Vdd and an optimal higher Vth. Application to a 32-bit ripple carry adder shows energy saving of 29% over the single-Vth lowest energy.
双阈值电压(Vth)设计是降低阈值以上电路泄漏功率的常用方法。研究表明,该方法在降低亚阈值电路的每周期能量方面也很有效。我们首先从理论上和仿真上研究了单v次设计,发现每个周期的能量与阈值电压无关。然而,在双电压设计中,每个周期的能量取决于阈值电压和电源电压。我们提出了一个框架,以进一步减少每循环的能量低于单个v值的可能。给定Vth的标称值,我们确定最佳电源电压Vdd和最佳更高Vth。应用于32位纹波进位加法器显示,比单v最低能量节省29%。
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引用次数: 4
Possibility of SOI based super steep subthreshold slope MOSFET for ultra low voltage application 基于SOI的超陡亚阈斜率MOSFET超低电压应用的可能性
Takayuki Mori, J. Ida
Ultra Low Power (ULP) LSI's require the steep subthreshold slope (SS) MOSFET. However, the theoretical SS limit of the conventional MOSFET is 60mV/dec at the room temperature. Recently, devices which have the less than 60mV/dec SS, such as the Tunnel FET (TFET) and the Impact Ionization MOS (I-MOS), have been studied. In addition to those, the steep SS MOSFET's using the Floating-Body (FB) SOI have been proposed. In this work, we report our finding of the FB and the Body-Tied (BT) SOI MOSFET with the super steep SS (<; 1mV/Dec) characteristics with the 0.15um SOI. We also discuss the possibility of it as a switching device for the ultra low voltage application, where we consider that the three points are the issues to improve; reducing the operation voltage, increasing Ion/Ioff ratios which also pay attention keeping the low Ioff, controlling hysteresis characteristics.
超低功耗(ULP) LSI需要陡的亚阈值斜率(SS) MOSFET。然而,在室温下,传统MOSFET的理论SS极限为60mV/dec。近年来,人们研究了功率小于60mV/dec的器件,如隧道场效应管(TFET)和冲击电离MOS (I-MOS)。此外,还提出了采用浮体(FB) SOI的陡坡SS MOSFET。在这项工作中,我们报告了我们的发现FB和体系(BT) SOI MOSFET具有超陡SS (<;1mV/Dec)特性与0.15um SOI。我们还讨论了它作为超低电压应用的开关器件的可能性,其中我们认为这三点是有待改进的问题;降低工作电压,提高离子/开关比,同时注意保持低开关,控制迟滞特性。
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引用次数: 3
Demonstration of gate-all-around FETs based on suspended CVD-grown silicon nanowires 基于悬浮cvd生长硅纳米线的栅极全能场效应管的演示
Jinyong Oh, Seung-min Lee, Jong-Tea Park, M. Triplett, Dong Yu, M. Islam
For the first time, herein we demonstrate gate-all-around field-effect-transistors having a horizontally suspended nanowire channel. The suspended nanowires were grown using the vapor-liquid-solid technique. The gate-all-around field-effect-transistor exhibited a p-type accumulation mode with desirable performance. To study properties of the connection between the nanowire channels and electrodes, measurements of surface photocurrent and temperature dependent current-voltage between source and drain electrodes were carried out. The results including an energy band diagram are discussed in this paper.
本文首次展示了具有水平悬浮纳米线沟道的栅极全能场效应晶体管。悬浮纳米线采用气-液-固技术生长。栅极全能场效应晶体管表现为p型积累模式,具有良好的性能。为了研究纳米线通道与电极之间的连接特性,测量了源极和漏极之间的表面光电流和温度相关的电流-电压。本文讨论了包括能带图在内的结果。
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引用次数: 1
Concurrent design analysis of A 8500V ESD-protected SP10T switch in SOI CMOS SOI CMOS中8500V防静电SP10T开关并行设计分析
X. S. Wang, Xin Wang, Z. Dong, Fei Lu, Li Wang, R. Ma, Chen Zhang, Albert Z. H. Wang, C. Yue, Dawn Wang, A. Joseph
SPMT-ESD interaction and co-design analysis are critical to designing SPMT with high ESD protection. New co-design approach helps to deliver a high linearity SP10T with 8500V ESD protection in SOI CMOS, compared favorable to the state-of-the-art with 0-700V ESD protections [1-3].
SPMT-ESD交互和协同设计分析是设计高ESD防护SPMT的关键。新的协同设计方法有助于在SOI CMOS中提供具有8500V ESD保护的高线性SP10T,与最先进的0-700V ESD保护相比[1-3]。
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引用次数: 0
Foundry SOI technology for wireless front end modules 无线前端模块代工SOI技术
P. Hurwitz, S. Chaudry, V. Blaschke, M. Racanelli
In the last few years, RF SOI has become the technology of choice for RF switches (RFSW) in wireless front-end modules, displacing GaAs pHEMT. More recently RF SOI has also been deployed to switch capacitor banks in antenna tuning applications and is now being discussed as the right technology for integration of tunable power-amplifiers, promising a path to a single-chip front-end module. In this paper we review the latest advancements in RF SOI foundry technology with focus on key figures of merit such as Ron × Coff, switch branch power handling, and linearity. In addition to these process-driven metrics, we will describe attributes of the compact models and design environment that allow fast and accurate simulation of small signal and large signal RFSW performance to create the most advanced and highly integrated products.
在过去的几年中,RF SOI已经取代GaAs pHEMT成为无线前端模块中RF开关(RFSW)的首选技术。最近,RF SOI也被部署到天线调谐应用中的开关电容器组中,目前正在作为可调谐功率放大器集成的正确技术进行讨论,有望实现单芯片前端模块。在本文中,我们回顾了射频SOI铸造技术的最新进展,重点介绍了关键的优点,如Ron × Coff,开关分支功率处理和线性度。除了这些过程驱动的指标外,我们还将描述紧凑模型和设计环境的属性,这些模型和设计环境允许快速准确地模拟小信号和大信号RFSW性能,从而创建最先进和高度集成的产品。
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引用次数: 3
期刊
2013 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S)
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