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International SoC Design Conference, ISOCC

作者： Zhenghao Lu Xiao Peng Yu Kiat Seng Yeo Department of Microelectronics Soochow University Suzhou China Institute of VLSI Design University of Zhejiang Hangzhou China Division of Circuits and Systems School of Electrical and Electronic Engineering Nanyang Technological University Singapore

As the VLSI technology node is getting into the sub-100 nm regime, the reliability issues caused by random interferences such as noise, process variations and manufacturing defects are changing the nature of digital computation from deterministic to probabilistic. This paper studies the principle of probabilistic-based Markov Random Field (MRF) design methodology for CMOS static logic gates. The MRF design technique is able to significantly improve the reliability and interference tolerance of the logic circuits. A Differential Cascode Voltage Switch (DCVS) based MRF logic design method is proposed, which presents substantial noise immunity improvement over the normal MRF logic circuits. The proposed method is validated by simulation in 65 nm CMOS technology.

关键词： Inverters Noise Semiconductor device modeling Integrated circuit modeling CMOS integrated circuits Probabilistic logic Markov random fields

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Advance on pulse-based UWB integrated transceiver circuits and systems: Invited paper

Advance on pulse-based UWB integrated transceiver circuits a...

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IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)

作者： Yuanjin Zheng Yuan Gao Shengxi Diao Chyuen Wei Ang Dong Han Chun Huat Heng Integrated Circuits & Systems Laboratory Institute of Microelectronics Singapore Singapore School of Electrical and Electronic Engineering Nanyang Technological University Singapore Singapore Department of ECE National University of Singapore Singapore Singapore

Ultra-Wideband (UWB) is a promising technology for short range wireless communication and precise ranging. In this paper, we first briefly review different approaches of UWB technique, and then concentrate on impulse radios. Various impulse UWB transceiver circuits and systems for different applications such as WPAN, WSN and WBAN are presented. Some recently developed pulse-based UWB radios are also introduced for specified applications. The advance of impulse radio is concluded and the future work is illuminated.

关键词： Transceivers Generators Receivers Modulation CMOS integrated circuits Synchronization Radio transmitters

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A 64-channel readout ASIC for nanowire biosensor array with electrical calibration scheme

A 64-channel readout ASIC for nanowire biosensor array with ...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Kevin T. C. Chai Kunil Choe Olivier D. Bernal Pradeep K. Gopalakrishnan Guo-Jun Zhang Tae Goo Kang Minkyu Je Integrated Circuits and Systems Laboratory Institute of Microelectronics Agency for Science Technology and Research Singapore Singapore Electrical Engineering Department Yale University USA Department of Electronics University of Toulouse III France Bioelectroincs Programme Institute of Microelectronics Agency for Science Technology and Research Singapore Singapore

A 1.8-mW, 18.5-mm 2 64-channel current readout ASIC was implemented in 0.18-μm CMOS together with a new calibration scheme for silicon nanowire biosensor arrays. The ASIC consists of 64 channels of dedicated readout and conditioning circuits which incorporate correlated double sampling scheme to reduce the effect of 1/f noise and offset from the analog front-end. The ASIC provides a 10-bit digital output with a sampling rate of 300 S/s whilst achieving a minimum resolution of 7 pA rms . A new electrical calibration method was introduced to mitigate the issue of large variations in the nano-scale sensor device parameters and optimize the sensor sensitivity. The experimental results show that the proposed calibration technique improved the sensitivity by 2 to 10 times and reduced the variation between dataset by 9 times.

关键词： Biosensors Calibration Application specific integrated circuits Sensitivity Integrated circuit modeling Current measurement CMOS integrated circuits

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Adaptive array based on “Multicore” DSP family and Linearly Constrained constant modulus IQRD RLS algorithm

Adaptive array based on “Multicore” DSP family and Linearl...

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East-West Design & Test Symposium (EWDTS)

作者： Irina D. Pletneva Victor I. Djigan Telecommunication System Department Moscow State Institute of Electronics Engineering Moscow Russia Electronic VLSI Engineering and Embedded Systems (ELVEES) Research and Development Center of Microelectronics Moscow Russia

The paper considers a Linearly Constrained CM(2,2) RLS algorithm for adaptive array with PSK signals. The peculiarities of the algorithm implementation on “Multicore” DSP platform are described.

关键词： Digital signal processing Signal processing algorithms Arrays Reduced instruction set computing Adaptive filters Adaptive algorithms Multicore processing

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A low-power high-performance accelerometer ASIC for high-end medical motion sensing

A low-power high-performance accelerometer ASIC for high-end...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Olivier D. Bernal Kunil Choe Pradeep K. Gopalakrishnan Hsiu-Yu Cheng Kotlanka R. Krishna David Nuttman Noel Axelrod Minkyu Je Department of Electronics University of Toulouse III France Integrated Circuits and Systems Laboratory Institute of Microelectronics Agency for Science Technology and Research Singapore Singapore Electrical Engineering Department Yale University USA Physical Logic Medical and military MEMS-based accelerometers Company Bnei-Brak Israel

A 170μW readout IC for a capacitive MEMS acceleration sensor was implemented in a 1.5V 0.13μm CMOS for high-end medical motion sensing applications. The accelerometer achieves a 45μg/vHz noise floor and a dynamic range larger than 87dB for a 400Hz bandwidth. Power reduction is achieved by introducing reset and common-mode feedback circuit techniques based on a non-unity-gain feedback configuration.

关键词： Accelerometers Micromechanical devices Application specific integrated circuits Robot sensing systems Acceleration Noise

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Silicon nanophotonic devices based on periodic structures

Silicon nanophotonic devices based on periodic structures

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IEEE International Conference on Group IV Photonics

作者： Z. Zhou D. S. Citrin H. Wu H. Yi J. Hou R. Hao E. Cassan X. Wang State Key Laboratory of Advanced Optical Communication Systems and Networks Peking University Beijing China Georgia Tech Lorraine Metz Technopõle Unità Mixte Internationale 2958 Georgia Tech-CNRS Metz France School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA Department of Components for Microelectronics & Optoelectronics Institut d'Electronique Fondamentale Institut d'Electronique Fondamentale University Orsay France

Periodic structures have been used extensively in optics and photonics. This paper is to report our work on manipulating optical propagation in the nanophotonics domain using silicon devices based on periodic structures.

关键词： Optical waveguides Silicon Gratings Nanoscale devices Photonics Photonic crystals

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A Precise SystemC-AMS Model for Charge Pump Phase Lock Loop with Multiphase Outputs

A Precise SystemC-AMS Model for Charge Pump Phase Lock Loop ...

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2009 IEEE 8th International Conference on ASIC(ASICON 2009)

作者： Huib Lincklaen Arriёns Rene van Leuken Alexander de Graaf with Circuits and Systems Group Department of microelectronics & Computer EngineeringFaculty of Electrical Engineering Mathematics and Computer ScienceDelft University of TechnologyNetherlands

SystemC-AMS as an extension of SystemC provides the essential capability to describe a mix-signal heterogeneous system,so that a virtual-prototype model can be generated to help analyze a whole mix-signal system and further guide the circuit *** paper presents an example of Systemc-ams modeling for a 10 phase 500MHz Charge Pump Phase Lock Loop,including digital models like Phase/Frequency Detector and clock N-divider,and analog models like Charge Pump,Low Pass Filter and Voltage Controlled *** order to prove the model's accuracy,the SPICE simulation result from the corresponding CMOS circuits based on the same structure of these models is used for comparison,and PLL Systemc-ams model is validated.

关键词： SystemC-AMS,Charge Pump,PLL,CMOS

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Increasing the delay-bit rate product on silicon chip using star-16QAM signal with high spectral efficiency

Increasing the delay-bit rate product on silicon chip using ...

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Asia Communications and Photonics Conference and Exhibition, ACP 2009

作者： Zhang, Liang Wang, Tao Liu, Qi Hu, Xiaofeng Wang, Jing Qiu, Min Su, Yikai State Key Lab of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai 200240 China Department of Microelectronics and Applied Physics Royal Institute of Technology Sweden

We experimentally demonstrate optical delay of a novel star-16QAM signal through a silicon microring resonator. Delay time of ~ 30ps is observed by comparing the eye diagram of the star-16QAM signal on-resonance with ... 详细信息

ISBN: (纸本)9781557528773

关键词： Stars

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Demonstration of wavelength multicasting using a silicon mode-split microring resonator

Demonstration of wavelength multicasting using a silicon mod...

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2009 15th Asia-Pacific Conference on Communications, APCC 2009

作者： Liu, Fangfei Wang, Tao Zhang, Ziyang Qiu, Min Su, Yikai State Key Lab. of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University 800 Dongchuan Rd Shanghai 200240 China Department of Microelectronics and Applied Physics Royal Institute of Technology Sweden

ISBN: (纸本)9781424447855

We experimentally demonstrate wavelength multicasting based on free carrier dispersion effect in a silicon mode-split microring resonator with a radius of ∼10 μm. The mode-split of the resonator is caused by mutual coupling between the co-propagating and counter-propagating modes inside the microring resonator, which is induced by the periodic grating-like roughness of the sidewalls. The free carriers are generated through the two photon absorption (TPA) effect and blue shift the resonance spectrum. 1.25-Gb/s data carried by the pump is simultaneously converted to two probe channels placed in the split resonances separated by ∼0.326 nm. ©2009 IEEE.

关键词： Silicon

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A massively parallel hardware architecture for ray-tracing

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International Journal of High Performance systems Architecture 2009年第1期2卷 26-34页

作者： Nery, A.S. Nedjah, N. França, F.M.G. Computer Architecture and Microelectronics Laboratory Systems Engineering and Computer Science Program COPPE P.O. Box 68511 21941-972 Rio de Janeiro Brazil Department of Electronics Engineering and Telecommunications Faculty of Engineering Universidade do Estado do Rio de Janeiro Rua Sao Francisco Xavier 524 Sala 5145-F Maracana 20.550-900 Rio de Janeiro RJ Brazil Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Department of Electronics Engineering and Telecommunications Faculty of Engineering State University of Rio de Janeiro Brazil Brazil

Real time performance of non-interactive rendering of three-dimensional scenes is usually unachievable. Ray tracing is one of the methods used for rendering such scenes. The performance achieved by a sequential software-based implementation of ray tracing is far from satisfactory. In contrast, many parallel implementations of ray tracing have been enabling real time performance, as the underlying algorithm can be massively parallelised. Thus, it is expected that a custom parallel design in hardware is likely to achieve the acceptable performance standards. In this paper, we propose a hardware architecture, which we call GridRT, capable of dealing with the main desirable features of ray tracing, such as shadows and reflections effects, imposing low requirements in terms of silicon area while achieving acceptable performance in terms of rendering time. This architecture achieves is efficient yet compact as it explores the massive parallelism offered by the intrinsic structure of the algorithm. The design exploits the usage the spatial data structure of regular grids. Copyright © 2009 Inderscience Enterprises Ltd.

关键词： Ray tracing

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