共查询到20条相似文献,搜索用时 125 毫秒
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直接耦合场效应逻辑(DCFL)具有简单的结构、良好的速度/功耗性能,是GaAsFETLSI电路中一种重要的逻辑形式。传统E/D型DCFL电路具有较低的成品率和较差的温度特性,本文研究了改进的E/E型DCFL电路。对E/D、E/E型DCFL电路的直流、瞬态及温度特性进行了分析、模拟和比较,E/E逻辑具有良好的高温性能。经优化设计,最后制作出单门延迟约100ps、单门功耗约1mW的E/D和E/E型DCFL电路,且E/E型电路较E/D型电路具有更高的成品率。 相似文献
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DVD的调制方式EFMplus(8/16调制)张绍高DVD(DigitalVideodisc,数字视频光盘,或DigitalVersatileDisc,数字通用光盘)的调制方式EFMplus(8/16调制)是在CD的EFM(Eight-Fourtee... 相似文献
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直接耦合场效应逻辑(DCFL)具有简单的结构、良好的速度/功耗性能,是GaAs FETLSI电路中一种重要的逻辑形式。传统E/D型DCFL电路具有较低的成品率和较差的温度特性,本文研究了改进的E/E型DCFL电路。对E/D、E/E型DCFL电路的直流、瞬态及温度特性进行了分析、模拟和比较,E/E逻辑具有良好的高温性能。经优化设计,最后制作出单门延迟的100ps、单门功耗的1mW的E/D和E/E型D 相似文献
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EDFA(Erbium -DopedFiberAmplifier,掺铒光纤放大器 )利用光纤中掺入稀土元素饵而引起的光增益机制来实现光信号放大的光纤线路元件。EDFFA(Erbium -DopedFluorideFiberAmplifier,掺铒氟化物光纤放大器 )ETE(EquivalentTelephoneErlangs,等效电话占线小时呼 )一种通话计量单位。通信中话务量常以爱尔兰小时呼表示。ETSI(EuropeanTelecommunicationStandardsInstitute,欧洲电信标准协会 )… 相似文献
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为配合2000门GaAs超高速门列及GaAs超高速分频器等2英寸GaAs工艺技术研究,开展了2英寸GaAs快速热退火技术研究,做出了阈值电压为0~0.2V,跨导大于100mS/mm的E型GaAsMESFET和夹断电压为-0.4~-0.6V,跨导大于100mS/mm的低阈值D型GaAsMESFET。 相似文献
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介绍了VisualFoxpro提供的对象链接与嵌入技术及其应用方法,并引用了多个我详细介绍了VFP与DELPHI,EXCEL,WORD,VB等应用程序间的相互联系。 相似文献
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Analysis for charged spacers in FED 总被引:3,自引:0,他引:3
Choi Y.S. Cha S.N. Jung S.Y. Kim J.W. Jung J.E. Kim J.M. 《Electron Devices, IEEE Transactions on》2000,47(8):1673-1677
Charged spacers in the field emission display (FED) are analyzed with the Monte Carlo method. The spacer is made of an insulator, which has generally a high secondary electron emission property. Under electron bombardment, the secondary electron emission induces charge on the spacer. We show that the surface of the spacer is charged positively in FED operation, which would cause an image distortion. We analyze the effect of charging on the spacer in terms of the electron density profile and luminescence profile of a dot near the spacer. Simulation results show that the image of a dot near the spacer is darker and smaller than that of a dot away from the spacer, though electrons are crowded near spacers. The results are confirmed by experiments. Finally, we suggest a way to reduce the effect of spacer charging by introducing a metal strip 相似文献
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场致发射显示器的现状与发展 总被引:18,自引:0,他引:18
通过对场致发射显示器(FED)发展现状及其应用前景进行系统的比较与分析,着重讨论了场致发射体与其阵列制备工艺以及各种关键技术的优缺点,并介绍国外著名公司的研究动态,展望FED的发展趋势。 相似文献
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As the gate length is scaling down, the spacer design for CMOS transistor becomes increasingly critical manufacturing process. In recent CMOS technologies, side-wall spacers play an important role in the control of short channel effects by offsetting ion implantation profiles from the edge of the gate. The present approach to overcome these fabrication limitations. The spacer patterning technology yields critical dimension variations of minimum-sized features which are much smaller than achieved by optical integrated lithography and etching processes. Generally relates to semiconductor manufacturing, and more particularly to nanotechnology fabrication feasibility for CMOS wafer process on gate spacer technology manufacture feasibility. A modified side-wall spacer patterning method was implemented for using conventional lithography and etching processing technology. Based on the systematical investigation of the effects of the various etch conditions on etching profile and their impacts on the sidewall transistor gate structure, a novel integrated process for well controlled side-wall spacer formation was developed for fabrication. 相似文献
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FED up with fat tubes 总被引:2,自引:0,他引:2
Field emission displays (FED) offer the best and brightest of two display worlds: the bright picture of bulky cathode-ray tube devices and the trim flat-panel picture of liquid-crystal displays. The similarities and differences between FED and CRT are briefly mentioned. The principles of FED operation, and the fabrication of the emitter array and anode, are described 相似文献
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The HOPping Field Emission Display (HOPFED) is a new architecture for field emission displays. The main difference between a conventional Field Emission Display (FED) device and a ItOPFED lies in the spacer structure. In a HOPFED, two dielectric plates, named hop and flu spacer, are sandwiched between the emitter and the front plate. The objective of this spacer structure is to improve the performance oF a FED substantially with notable contrast, color purity and luminance uniformity. In order to optimize the structure of the device and to make the electron spot on the screen match the requirement of the phosphor dot dimension, the influence of electrical and structural parameters of the device on the electron spot profile was studied by numerical simulation in this paper. Monte Carlo method was employed to calculate the potential distribution inside hop and flu spacers due to secondary electrons mechanism plays an important role in HOPFED. The results indicated that the potential distribution in the spacers and spot profile depended strongly on the hop voltage, anode voltage and spacer's layout. This study may provide a useful theoretical support for optimizing the structure in HOPFED. 相似文献
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Flat panel display technologies for portable and personal information systems are reviewed. The display sub-system performance requirements, and the metrics for evaluating display technologies for portable systems are discussed. The current display technology choices for high performance portable systems are active matrix liquid crystal display (AMLCD) and field emitter display (FED). AMLCD is at the forefront at an advanced state of development, and it is already in mass production for notebook computer applications. Because of the huge market size, AMLCD technology continues to be developed at an aggressive pace to address the needs of the future portable systems. On the other hand, FED technology is not currently in mass production, but it is being developed at rapid pace; Impressive technology capabilities and demonstration displays have already been shown. This review focuses on the current status and future development trends in both the these display technologies for application to portable systems. The current status of the reflective LCDs and their future development trends are also reviewed. 相似文献