检索结果-内蒙古大学图书馆

International Conference on asic

作者： Yun Chen Nan Shao Bo Xiang Dan Bao An Pan Xiaoyang Zeng State Key Laboratory of ASIC and System Department of Microelectronics Fudan University Shanghai China

For the complex development process of media broadcasting demodulator chip, it is proposed that a low cost, high reliability verification and test scheme at system level in this paper. This scheme emphasizes the collaboration of algorithm simulation, RTL description, FPGA verification, asic realization and any other stages of chip development. All these stages constitute an organic, closely interconnected whole. And for the particularity of communication chip, this scheme can solve function verification and performance test, ensure the accuracy, completeness and reliability of the test and verification. Then both the development time and the cost of the product are significantly reduced. This verification and test scheme has been applied to the demodulation chip of the receiver of Chinese broadcasting standard DTMB system.

关键词： Broadcasting Demodulation Circuit testing system testing Field programmable gate arrays Application specific integrated circuits Costs Chip scale packaging Collaboration Analytical models

来源：评论

学校读者我要写书评

暂无评论

A New FPGA placement algorithm for heterogeneous resources

A New FPGA placement algorithm for heterogeneous resources

引用

International Conference on asic

作者： Ding Xie Jiawei Xu Jinmei Lai ASIC & System State Key Lab Department of Microelectronics Fudan University China ASIC & System State Key Lab Department of Microelectronics Fudan University Shanghai China

In this paper, we present a new placement algorithm targeted on a modern FPGA with heterogeneous logic and routing resources. This algorithm divides the heterogeneous resources of an FPGA into different logic layers, obtains a good initial placement by a quadratic method, and then employs low-temperature simulated annealing on each logic layer to determine the final location for all modules. Experiment result shows that the algorithm not only gains a saving of runtime by 27% compared with the classical approach of Versatile Place and Route (VPR) while having the same performance, but is also highly adaptable to modern FPGAs which have heterogeneous logic and routing resources.

关键词： Field programmable gate arrays Logic Modems Application specific integrated circuits Routing Simulated annealing Partitioning algorithms microelectronics Performance gain Atherosclerosis

来源：评论

学校读者我要写书评

暂无评论

Quantum-mechanical study on the electron effective mobility of surrounding-gate nMOSFETs

Quantum-mechanical study on the electron effective mobility ...

引用

International Conference on asic

作者： Guang-Xi Hu Ran Liu Ting-Ao Tang Ling-Li Wang Zhi-Jun Qiu State Key Laboratory of ASIC & System School of Microelectronics Fudan University Shanghai China

As metal - oxide - semiconductor field-effect transistors (MOSFETs) down scaling progresses into the nanometer regime, quantum mechanical effects are becoming more and more significant. In this work, a model for the surrounding-gate (SG) nMOSFET is developed. The Schro¿dinger equation is solved analytically and some of the results are verified via simulations. We find that the percentage of the electrons with a lighter conductivity mass increases as the temperature decreases, or as the gate voltage reduces. These imply that low temperature and low gate voltage will enhance the electron effective mobility, which is good for the device performance.

关键词： Electron mobility MOSFETs Quantum mechanics Conductivity Silicon RNA FETs Schrodinger equation Analytical models Temperature

来源：评论

学校读者我要写书评

暂无评论

The study of nanosized zeolite films in sensor for DMMP gas detection

The study of nanosized zeolite films in sensor for DMMP gas ...

引用

2009 16th IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2009

作者： Xie, Haifen Hu, Qiong Zhou, Jia Huang', Yiping Physics Department East China University of Science and Technology 130 Meilong Road Shanghai 200237 China Department of Microelectronics 220 Handan Road ASIC and System State Key Lab Shanghai 200433 China

ISBN: (纸本)9781424439102

Nanosized ZSM-5 and Ag+ modified nanosized ZSM-5 as sensitive films to detect the nerve agent simulant dimethylmethylphosphonate(DMMP) at low concentration has been reported [1]. In order to find the relationship between pore size and sensitivity, larger pore size f3 zeolite film was also used to detect the DMMP gas. Different types of zeolite films with specific sensitivity towards low concentration of acetone and ethanol gases were discussed. This observation demonstrates that sensitivity depended not only on the size of the molecules but also morphology of zeolite grains. The Ag+ modified nanosized ZSM-5 film has a high sorption capacity of acetone gas, while nanosized ZSM-5 has higher sorption capacity of DMMP gas. f3 zeolite film had the worst absorption of the DMMP gas. The absorption and desorption condition of nanosized ZSM-5 film was also discussed in this paper. Based on these results it was concluded that nanosized ZSM-5 films could be used as effective DMMP gas sensor materials. ©2009 IEEE.

关键词： Gases

来源：评论

学校读者我要写书评

暂无评论

Robust Low Voltage Program-Erasable Cobalt-Nanocrystal Memory Capacitors with Multistacked Al2O3/HfO2/Al2O3 Tunnel Barrier

引用

Chinese Physics Letters 2009年第8期26卷 313-316页

作者：廖忠伟苟鸿雁黄玥孙清清丁士进张卫张世理 State Key Laboratory of ASIC and System School of Microelectronics Fudan University Shanghai 200433 School of Information and Communication KTH (Royal Institute of Technology) Electrum 229 SE-164 40 Kista Sweden

A n atomic-layer-deposited Al2O3/HfO2/Al2O3 （A/H/A） tunnel barrier is in vestigated for Co nanocrystal memory capacitors. Compared to a single Al2O3 tunnel barrier, the A/H/A barrier can significantly increase the hysteresis window, i.e., an increase by 9 V for ±12 V sweep range. This is attributed to a marked decrease in the energy barriers of charge injections for the A/H/A tunnel barrier. Further, the Co-nanocrystal memory capacitor with the A/H/A tunnel barrier exhibits a memory window as large as 4.1 V for 100 μs program/erase at a low voltage of ±7 V, which is due to fast charge injection rates, i.e., about 2.4× 10^16 cm^-2 s^-1 for electrons and 1.9× 1016 cm^-2 s^-1 for holes.

关键词： ROBUST control COBALT compounds LOW voltage systems NANOCRYSTALS CAPACITORS OXIDES TUNNELING (Physics) THIN films -- Electric properties

来源：评论

学校读者我要写书评

暂无评论

A novel synchronization scheme for OFDM-based CMMB receivers

A novel synchronization scheme for OFDM-based CMMB receivers

引用

International Conference on asic

作者： Xiuping Chen Chuan Wu Zhou Chen Bo Shen Xiaoyang Zeng State Key Laboratory of ASIC and System Department of Microelectronics Fudan University Shanghai China SiFOND Microelectronics Company Limited Shanghai China

A novel synchronization scheme aiming at the special frame structure of China mobile multimedia broadcasting (CMMB) is presented in this paper. Based on the fact that CMMB system is very sensitive to the synchronization error, this scheme gives a solution which integrates high precision symbol timing recovery, carrier frequency recovery and sampling clock frequency recovery. Simulation results show that proposed algorithm can perform robustly at -2 dB SNR and TU6 channel with 300Hz Doppler frequency shift. The root mean square error (RMSE) of sampling clock frequency offset estimation and residual carrier frequency offset estimation is 50% less than that of conventional scheme.

关键词： Frequency synchronization Digital video broadcasting Timing Frequency estimation OFDM microelectronics Multimedia communication Sampling methods Digital audio broadcasting Application specific integrated circuits

来源：评论

学校读者我要写书评

暂无评论

Potential-induced surface stress change during the electrochemical reaction

Potential-induced surface stress change during the electroch...

引用

International Conference on asic

作者： Jie Yang Jia Zhou ASIC and System State Key Lab Department of Microelectronics Fudan University Shanghai China

Electrochemically-induced changes in surface stress at the solid-liquid interface are measured using a cantilever-based sensor. We simultaneously measure the current (charge) and interfacial stress changes by employing a microcantilever as both the working electrode (in a conventional three-probe electrochemical cell configuration) and as the mechanical transducer (bending of the cantilever) when the electrochemical reaction takes place, and discuss the origin of the surface stress.

关键词： Electrodes Chemical analysis Stress measurement Gold Chemical transducers Mechanical sensors Pollution measurement Current measurement Charge measurement Instruments

来源：评论

学校读者我要写书评

暂无评论

Statistical analysis of on-chip power grid networks by variational extended truncated balanced realization method

Statistical analysis of on-chip power grid networks by varia...

引用

Asia and South Pacific Design Automation Conference

作者： Duo Li Sheldon X.-D. Tan Gengsheng Chen Xuan Zeng Department of Electrical Enqineering University of California Riverside CA USA ASIC & System State-Key-Lab Microelectronics Dept. Fudan Univeristy Shanghai China 200433 ASIC & System State-Key-Lab Microelectronics Dept. Fudan Univeristy Shanghai China

ISBN: (纸本)9781424427482

In this paper, we present a novel statistical analysis approach for large power grid network analysis under process variations. The new algorithm is very efficient and scalable for huge networks with a large number of variational variables. This approach, called varETBR for variational extended truncated balanced realization, is based on model order reduction techniques to reduce the circuit matrices before the variational simulation. It performs the parameterized reduction on the original system using variation-bearing subspaces. varETBR calculates variational response Gramians by Monte-Carlo based numerical integration considering both system and input source variations for generating the projection subspace. varETBR is very scalable for the number of variables and is flexible for different variational distributions and ranges as demonstrated in experimental results. After the reduction, Monte-Carlo based statistical simulation is performed on the reduced system and the statistical responses of the original system are obtained thereafter. Experimental results, on a number of IBM benchmark circuits up to 1.6 million nodes, show that the varETBR can be 4500X faster than the Monte-Carlo method and is much more scalable than one of the recently proposed approaches.

关键词： Statistical analysis Network-on-a-chip Power grids Circuit simulation Voltage Leakage current Application specific integrated circuits Sampling methods Analytical models Random variables

来源：评论

学校读者我要写书评

暂无评论

A low-power dual-clock strategy for digital circuits of EPC Gen2 RFID tag

A low-power dual-clock strategy for digital circuits of EPC ...

引用

IEEE International Conference on RFID

作者： Qiasi Luo Li Guo Qing Li Gang Zhang Junyu Wang Department of Electronic Science and Technology University of Science and Technology Hefei China State Key Laboratory of ASIC & System School of Microelectronics Fudan University Shanghai China

ISBN: (纸本)9781424433377

Power consumption is critical to the performance of EPC Gen2 RFID tags. system clock frequency of tags should be as low as possible to reduce the power consumption and still conform to the protocol. This paper analyses the impact of different clock strategies on digital circuits of EPC Gen2 tag. An error shift approach is proposed to reduce the backscatter link frequency (BLF) errors. A dual-clock strategy with both 1.28 and 2.56 MHz clocks for the digital circuits is developed. Compared with the 1.92 MHz unitary-clock strategy, the dual-clock strategy offers larger decoding margins and BLF margins, consumes 5.66% to 9.44% less power estimated in CMOS 0.18 mum technologies, and fully conforms to the EPC Gen2 protocol as well.

关键词： Digital circuits RFID tags Clocks Protocols Frequency Energy consumption Radiofrequency identification Decoding Backscatter Encoding

来源：评论

学校读者我要写书评

暂无评论

Effect of refractive index of dielectric on transmission properties for metal/dielectric/metal photonic crystal

Effect of refractive index of dielectric on transmission pro...

引用

International Conference on asic

作者： Gongli Xiao Yiping Huang Zongming Bao State Key Laboratory of ASIC & System Department of Microelectronics Fudan University Shanghai China Information & Communications College Guilin University of Electronic and Technology Guilin China

The effect of refractive index of dielectric on transmission properties for metal/dielectric/metal photonic crystal (M/D/MPhC) by changing a thin dielectric layer was studied experimentally. We measured zero-order transmission spectra of three different M/D/MPhC samples in the middle-infrared region and found that the transmission peaks shifted regularly along with the refractive index change, owing to the role of surface plasmon polaritons (SPP) coupling in the M/D/MPhC. The position of transmission peak for M/D/MPhC is not only determined by the periodic structure on top Au film but is also affected by the refractive index of intermediate dielectric. By analyzing the relationship between transmission peaks and effective refractive index of a thin dielectric layer sandwiched by two gold layers, we find that the transmission properties for M/D/MPhC depend strongly on both the material property and the refractive index of dielectric being sandwiched by two metal films. The transmission peak sensitive nature to the refractive index of a thin dielectric layer in M/D/MPhC is promising in applications of biochemical sensing and tunable integrated plasmonic devices.

关键词： Refractive index Photonic crystals Plasmons Gold Optical films Dielectric measurements Couplings Periodic structures Material properties Dielectric thin films

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：