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2007 14th International Conference on Mixed Design of Integrated Circuits and Systems最新文献

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Tradeoffs and Optimization in Analog CMOS Design 模拟CMOS设计中的权衡与优化
Pub Date : 2008-08-04 DOI: 10.1109/mixdes.2007.4286119
D. Binkley
The selection of drain current, inversion coefficient, and channel length for each MOS device in an analog circuit results in significant tradeoffs in performance. The selection of inversion coefficient, which is a numerical measure of MOS inversion, enables design freely in weak, moderate, and strong inversion and facilitates optimum design. Here, channel width required for layout is easily found and implicitly considered in performance expressions. This paper gives hand expressions motivated by the EKV MOS model and measured data for MOS device performance, inclusive of velocity saturation and other small-geometry effects. A simple spreadsheet tool is then used to predict MOS device performance and map this into complete circuit performance. Tradeoffs and optimization of performance are illustrated by the design of three, 0.18-mum CMOS operational transconductance amplifiers optimized for DC, balanced, and AC performance. Measured performance shows significant tradeoffs in voltage gain, output resistance, transconductance bandwidth, input-referred flicker noise and offset voltage, and layout area.
模拟电路中每个MOS器件的漏极电流、反转系数和通道长度的选择会导致性能上的重大权衡。反演系数的选择是MOS反演的数值度量,可以在弱、中、强反演中自由设计,便于优化设计。在这里,布局所需的通道宽度很容易找到,并在性能表达式中隐式地考虑。本文给出了由EKV MOS模型和MOS器件性能测量数据驱动的手写表达式,包括速度饱和度和其他小几何效应。然后使用一个简单的电子表格工具来预测MOS器件的性能并将其映射到完整的电路性能中。通过设计三个0.18 μ m CMOS操作跨导放大器,对直流、平衡和交流性能进行了优化,说明了性能的权衡和优化。测量的性能显示了电压增益、输出电阻、跨导带宽、输入参考闪烁噪声和失调电压以及布局面积的显著权衡。
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引用次数: 290
Integrated Thermo-Electro-Mechanical Modeling of 3D e-Cubes Structures 三维电子立方体结构的热-电-机械集成建模
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286171
G. Janczyk, T. Bieniek, P. Janus, A. Kociubiński, P. Grabiec, J. Szynka, M.S. Reitz, P. Schneider, E. Kaulfersch, J. Weber
The complex silicon systems formed by the several specialized devices like SOC, RF devices, power devices, MEMS wafers are fabricated in dedicated technologies. If the designer attempts to integrate them into the one big multifunctional system, he meets the new, yet unexplored fields for the multidisciplinary, mutually dependent thermal, electrical, EM and mechanical parameters modeling. This article attempts to clarify, and presents how to simplify this problem.
由SOC、RF器件、功率器件、MEMS晶圆等多种专用器件组成的复杂硅系统采用专用技术制造。如果设计师试图将它们整合到一个大的多功能系统中,他就会遇到新的、尚未开发的多学科、相互依赖的热、电、电磁和机械参数建模领域。本文试图澄清并介绍如何简化这个问题。
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引用次数: 3
Parameters Identification of Embedded PTAT Temperature Sensors for CMOS Circuits CMOS电路中嵌入式PTAT温度传感器的参数辨识
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286190
A. Golda, A. Kos
In this paper, we describe the parameters identification results of PTAT (proportional to absolute temperature) temperature sensors that are implemented in the test chip and dedicated to CMOS integrated circuits. Theirs principles of operation are based on the vertical PNP structure. These sensing elements are uniformly distributed on the chip surface. The chip is dedicated to analyses and verifications of various electro-thermal phenomena in microelectronic VLSI circuits and is fabricated in CMOS 0.7 mum technology. The measurements were performed in a thermal chamber for the temperature range of 288-358 K. The achieved sensitivities of the temperature sensors are within following limits 3.44 to 4.82 mV/K.
本文描述了PTAT (proportional to absolute temperature,绝对温度比例)温度传感器在CMOS集成电路测试芯片上的参数辨识结果。他们的操作原理是基于垂直PNP结构。这些传感元件均匀地分布在芯片表面。该芯片专门用于分析和验证微电子VLSI电路中的各种电热现象,采用CMOS 0.7 mum技术制造。测量在温度范围为288-358 K的热室中进行。温度传感器的灵敏度在以下范围内3.44至4.82 mV/K。
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引用次数: 5
Analog, Continuous Time, Fully Parallel, Programmable Image Processor Based on Vector Gilbert Multiplier 模拟,连续时间,全并行,基于矢量吉尔伯特乘法器的可编程图像处理器
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286156
R. Dlugosz
A conception as well as a CMOS implementation of the analog, ultra low power and fully parallel image processor have been presented in this paper. Proposed circuit bases on the 2-D FIR filters realized using the Gilbert vector multiplier. Proposed filter enables realization of various lowpass and highpass 2-D FIR filter masks. Both the mask dimensions and values of the filter coefficients can be programmed using several dozen digital signals and several DC currents. Proposed image processor does not use the clock generator, what simplifies the overall circuit's structure and reduces the noise level. An example (6times6) image processor that enables filtering with a 3times3 mask has been implemented in CMOS 0.18 mum process. This circuit calculates 36 pixels in parallel every 1 mus, dissipating power about 20 muW. The image resolution can be easily enlarged by a parallel connection of many designed 6times6 cells.
本文提出了模拟、超低功耗、全并行图像处理器的概念和CMOS实现。提出了一种基于吉尔伯特矢量乘法器实现二维FIR滤波器的电路。所提出的滤波器能够实现各种低通和高通二维FIR滤波器掩模。掩模尺寸和滤波器系数的值都可以用几十个数字信号和几个直流电流来编程。该图像处理器不使用时钟发生器,简化了整个电路的结构,降低了噪声水平。在CMOS 0.18 mum工艺中实现了一个示例(6times6)图像处理器,可以使用3times3掩模进行滤波。该电路每1 μ m并行计算36个像素,耗电约20 μ w。通过将许多设计的6倍6单元并行连接,可以很容易地扩大图像分辨率。
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引用次数: 2
Investigation of Substrate Noise Coupling and Isolation Characteristics for a 0.35UM HV CMOS Technology 0.35UM高压CMOS技术衬底噪声耦合与隔离特性研究
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286198
W. Pflanzl, E. Seebacher
This paper presents the characterization of substrate noise coupling and the isolation capability of ohmic substrate contacts in a HV CMOS technology. Layout variations of contact sizes, distances, and several p+ guard structures are subject of this research. Metal shielded DUT fixtures have been developed to improve the reliability and accuracy of the measurements. All test cases are fabricated with a 0.35 mum HV CMOS technology (Vmax <= 120 V). This process features high resistive native substrate (20 Ohm.cm) together with a 0.5 Ohm.cm pwell. The modeling section describes the distributed substrate "resistor" and the DUT fixture behavior.
本文介绍了高压CMOS技术中基片噪声耦合的特性和基片欧姆触点的隔离能力。布局变化的接触尺寸,距离,和几个p+保护结构是本研究的主题。为了提高测量的可靠性和准确性,开发了金属屏蔽的被测夹具。所有测试用例均采用0.35 μ m HV CMOS技术(Vmax <= 120 V)制造。该工艺具有高电阻原生衬底(20欧姆.cm)和0.5欧姆的电阻。cm pwell。建模部分描述了分布式基板“电阻”和被测装置的行为。
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引用次数: 2
Implementation of Cholesky LLT-Decomposition Algorithm in FPGA-Based Rational Fraction Parallel Processor 基于fpga的有理分式并行处理器中Cholesky llt分解算法的实现
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286169
O. Maslennikow, P. Ratuszniak, A. Sergyienko
In this paper, the fixed size processor array architecture, which is destined for realization of LLT-decomposition of symmetrical positively definite matrices based on Cholesky algorithm, is proposed. In order to implementation of this architecture in modern FPGA devices, the arithmetic unit (AU) operating in the rational fraction arithmetic is designed. This AU is adapted to realization in the Xilinx reconfigurable platforms Virtex II or Virtex 4 families and its hardware complexity is up to 4,5 times less in comparison with similar AUs operating with float-point numbers.
本文提出了基于Cholesky算法实现对称正定矩阵的llt分解的固定大小处理器阵列架构。为了在现代FPGA器件中实现该体系结构,设计了运行有理分数算法的算术单元(AU)。该AU适用于Xilinx可重构平台Virtex II或Virtex 4系列,与使用浮点数的类似AU相比,其硬件复杂性降低了4,5倍。
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引用次数: 11
Behavioural Modelling and Simulation of Dual Cascaded PLL Based Frequency Synthesizer 基于双级联锁相环频率合成器的行为建模与仿真
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286194
A. Telba, S.M. Qasim, J. Noras, B. Almashary, M. A. El Ela
In this paper, behavioural model of a dual cascaded phase locked loop (PLL) based frequency synthesizer is presented and the results are validated through SystemVision simulation using very high speed Integrated circuit hardware description language-analog mixed signal (VHDL-AMS). Dual cascaded PLL consists of a low jitter PLL employing a voltage controlled crystal oscillator (VCXO) followed by a wideband PLL employing normal voltage controlled oscillator (VCO). The advantage of using dual PLL in cascade configuration is that it provides very good performance in terms of low jitter as compared to a single PLL based frequency synthesizer. Simulation results obtained are in good agreement with the theoretical calculations.
本文提出了一种基于双级联锁相环(PLL)频率合成器的行为模型,并利用超高速集成电路硬件描述语言-模拟混合信号(VHDL-AMS)通过SystemVision仿真验证了模型的正确性。双级联锁相环由采用压控晶体振荡器(VCXO)的低抖动锁相环和采用普通压控振荡器(VCO)的宽带锁相环组成。在级联配置中使用双锁相环的优点是,与基于单锁相环的频率合成器相比,它在低抖动方面提供了非常好的性能。仿真结果与理论计算结果吻合较好。
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引用次数: 1
Integral Interface - Universal Communication Interface for FPGA-Based Projects 集成接口-基于fpga项目的通用通信接口
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286131
A. Piotrowski, S. Tarnowski, G. Jablonski, A. Napieralski
During the development process it is very important to assure reliable communication between individual parts of the system. In a special case, when the system is implemented in the FPGA chip, possible solution of communication problem encompass not only ready-made solutions but also especially designed interfaces adapted to specific projects. This paper highlights Integral Interface -universal communication interface for applications in FPGA chip. In addition, presented paper describes specialized program that automatically generates VHDL source code for an interface and supplementary components.
在开发过程中,确保系统各个部分之间的可靠通信是非常重要的。在特殊情况下,当系统在FPGA芯片上实现时,可能的通信问题解决方案不仅包括现成的解决方案,还包括针对特定项目专门设计的接口。本文重点介绍了集成接口——用于FPGA芯片的通用通信接口。此外,本文还介绍了自动生成VHDL源代码的专用程序。
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引用次数: 6
Evolution of the Classical Functional Integration Towards a 3D Heterogeneous Functional Integration 经典功能集成向三维异构功能集成的演变
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286116
J. Sanchez, A. Bourennane, M. Breil, P. Austin, M. Brunet, J. Laur
This paper presents a brief overview of the monolithic integration in the field of power electronics. Emphasis is mainly put on the functional integration concept. The role that this mode of integration, according to its classical definition, played to enable the monolithic integration of the power device with auxiliary elements (mainly protections and supply) for the realization of new functions dedicated for medium power applications is highlighted. At that end, some of the recent realizations are described in order to showcase some of the potentialities of this mode of integration. Furthermore, to extend further the classical integration towards a 3D "heterogeneous" functional integration, an example that highlights the improvements that should be achieved at the device's level as well as at the device's environment level, for the development of new power integrated functions for AC applications, is discussed. The last part deals with the technology process evolution for the realization of the active devices as well as the passive elements. In this part, a flexible technological process and its importance in the development of more complex functions, implemented in 3D within the silicon die volume and at the surface, is described in more detail.
本文简要介绍了电力电子领域的单片集成技术。重点介绍了功能集成的概念。根据其经典定义,这种集成模式所发挥的作用是使功率器件与辅助元件(主要是保护和电源)实现单片集成,以实现专用于中等功率应用的新功能。最后,描述了一些最近的实现,以展示这种集成模式的一些潜力。此外,为了进一步将经典集成扩展到3D“异构”功能集成,本文还讨论了一个例子,该例子突出了在设备级别以及设备环境级别上应该实现的改进,以开发用于交流应用的新电源集成功能。第四部分论述了有源器件和无源器件实现的技术过程演变。在这一部分中,更详细地描述了一种灵活的工艺过程及其在开发更复杂功能方面的重要性,并在硅模体积内和表面上实现了3D。
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引用次数: 6
Experiments and Modeling of Dynamic Floating Body Effects in 1T-Dram Fully Depleted SOI Devices 1T-Dram全耗尽SOI器件中动态浮体效应的实验与建模
Pub Date : 2007-06-21 DOI: 10.1109/MIXDES.2007.4286125
M. Bawedin, S. Cristoloveanu, V. Dessard, Denis Flandre
We describe the transient floating-body mechanism which occurs in fully depleted SOI transistors and leads to a memory effect. A physics-based model for the potential variation with time is proposed and validated by numerical simulations. This model reproduces and clarifies the operation of the novel capacitor-less MSDRAM, the properties of which are discussed.
我们描述了在完全耗尽的SOI晶体管中发生并导致记忆效应的瞬态浮体机制。提出了电势随时间变化的物理模型,并通过数值模拟进行了验证。该模型再现并阐明了新型无电容MSDRAM的工作原理,并对其特性进行了讨论。
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引用次数: 1
期刊
2007 14th International Conference on Mixed Design of Integrated Circuits and Systems
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