EDA技术在电子技术系列实践课程中的融合运用

为适应创新教育发展需要,将电子设计自动化(EDA)技术在电子技术相关实践环节中融合运用,从而提高课程间的衔接,使学生融会贯通所学知识和技能.对电子工艺实习、数电实验、电子技术课程设计、EDA实验与课程设计、创新创业实践、毕业设计等进行了EDA技术融入与支撑的方案设计.该方案配合高水平专业建设和培养方案改革,运行效果良好,可供电子技术类实践教学改革参考.     

EDA技术在电子技术系列实践课程中的融合运用

为适应创新教育发展需要,将电子设计自动化(EDA)技术在电子技术相关实践环节中融合运用,从而提高课程间的衔接,使学生融会贯通所学知识和技能.对电子工艺实习、数电实验、电子技术课程设计、EDA实验与课程设计、创新创业实践、毕业设计等进行了EDA技术融入与支撑的方案设计.该方案配合高水平专业建设和培养方案改革,运行效果良好,可供电子技术类实践教学改革参考.     

EDA技术实践课程建设及实践基地建设

EDA技术是电子技术最前沿的技术,电类应用型人才所必须掌握的技术。为此,我校开设了电子设计自动化实践课程,建立了应用型人才培养基地。本文介绍了课程体系建设、基地建设和实验平台建设的思路和做法。所取得成绩证明,电子设计自动化实践课程体系建设及实践基地建设是培养目前我国急需的应用型人才行之有效的方法。     

“EDA技术与应用”课程教学内容的定位与改革

电子设计自动化EDA是电子信息专业学生所必须掌握的设计方法。本文通过对＂EDA技术与应用＂课程的教学内容、教学方式和实验手段等几个方面的研究,根据近几年的教学经验,对本课程教学内容进行分析研究并定位。针对目前＂EDA技术与应用＂教学中的经验与教训,提出了几种改革创新方法。     

基于EDA技术的多功能计时器设计

电子设计自动化(EDA)是以计算机为操作平台、以硬件描述语言为设计语言、以可编程器件为实验栽体进行必要的元件建模和系统仿真的电子产品自动化设计过程.运用EDA技术进行电子系统的设计,有着设计快速、调试方便、研制周期短、系统可靠性高等优点,EDA技术是现代电子设计的发展趋势,介绍了基于EDA技术设计多功能计时器的一种方案.设计中采用了自上而下的方法,给出了多功能计时器的结构图和部分仿真结果,结果表明该系统的设计方案正确.     

浅析电子设计中EDA技术的应用

EDA技术（也称为电子设计自动化）是近年来电子设计中的主流趋势,EDA的产生给电子设计带来了全新的理念,在目前的电子设计中,EDA技术相关的应用越来越普遍,本文首先EDA技术的概念及其主要的特征,然后分析了EDA技术在电子设计过程中需要注意的事项,最后针对电力系统中电子设计的EDA应用做出了分析,为EDA技术在单子设计中的应用提供一个借鉴的作用。     

面对当代ASIC与EDA的一些思考

本文在介绍ASIC（专用集成电路）与EDA（电子设计自动化）的发展概况之后，指出掌握EDA工具、学会设计ASIC是当代科技对电类大学生的基本要求之一；提出了对高等学校电类专业在课程设置与实验室建设方面如何缩小与当代ASIC和EDA技术之间的差距的一些思考。     

基于翻转课堂模式的EDA课程教学实践

文章分析了EDA(Electronic Design Automation,电子设计自动化)课程的教学内容、教学现状,通过对翻转课堂教学模式特点的分析,阐述了EDA教学中引入翻转课堂教学的必要性与优越性,通过网络、微信等平台实现EDA课程、课堂内外的信息互联,对提高学生的学习兴趣,改进教学方法有一定的研究意义。     

基于EDA技术的电子设计

数字化是电子设计发展的必然趋势,EDA技术综合了计算机技术、集成电路等在不断向前发展,给电子设计领域带来了一种全新的理念。本文笔者首先简单对EDA技术的概念做了一个介绍,接着详细阐述了EDA技术的几种典型特点,讨论了EDA技术在电子设计中的应用及一般流程,最后从细谨态度出发,根据经验,提出了几点注意事项。     

EDA技术在电子类课程教学中的应用研究

针对电子类课程教学体系的不足,提出了一种课堂教学中引入EDA技术的理论教学模式,阐述了高校电子类课程教学中引入EDA技术的必要性,并对引入的3种方式进行了探讨,尤其是对将现代电子设计思想引入教学中以及开展EDA专门课程2种方式作了详细分析.这种教学方式能够辅助教师更好地解释和阐明复杂问题,有利于学生理解和掌握其基础理论知识,提高综合设计能力.     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks