1.6 cm SVGA LCoS微型显示器的研制

介绍了我国自主开发研制的分辨率为800×600(SVGA)、以单晶硅为基底的微型液晶显示器--LCoS(Liquid-Crystal-on-Silicon,硅基液晶)显示器,并展示LCoS微显示器系统电路结构、显示芯片物理结构、微显光机放大原理、以及相关视频显示图像,从一个侧面反映了中国的LCoS显示技术研发水平.     

高亮度LCoS微显示器的接口设计

为了提高LCoS微显示器的亮度，提出了双拍存储伪并行的驱动方式，设计了适用于高亮度LCoS微显示器的接口ASIC（专用集成电路），从而使LCoS微器的亮度可以提高数倍，并获得了更小的接口尺寸和更低的功耗。     

双拍双存储伪并行LCoS微显示器交流驱动的研究

双拍双存储式驱动的LCoS微显示器引入了一些新的问题，对此提出了应用于双拍双存储式驱动的LCoS微显示器的新的交流驱动方式，通过互补驱动信号电压和浮动公共电极电压相结合的方法，不但满足了LCoS的要求，而且降低了工作电压。     

天赐良机——LCoS与中国平板显示产业

LCoS是一种反射式微型有源矩阵液晶显示器,其有源矩阵使用CMOS技术制作在单晶硅衬底上,因而拥有了小尺寸和高显示分辨率的双重特性。本文介绍了LCoS显示器的结构和用途,展示了LCoS显示芯片的设计方法及其实际设计结果,最后综述LCoS的未来市场和现在的生产状况。     

硅基液晶显示器研究进展

硅基液晶（Liquid Crystal on Silicon)显示器是一种反射式液晶显示器，其周边驱动器和有源像素矩阵使用CMOS技术制作在单晶硅上，并以该晶片为基底封装液晶盒，因而拥有小尺寸和高显示分辨率的双重特性。详细讨论了LCoS显示器的结构和用途，展示了LCoS显示芯片的实际设计结果及其设计方法。     

高端电视向大屏幕平板显示发展

数字高清晰度电视是高端电视的基本潮流.高清晰度电视的显示器件已从传统的CRT向平板显示器件-LCD、PDP、LCoS、DLP等过渡.其中,最引人注目的是价格较LCD及PDP便宜的微显示器件LCoS(硅基液晶)和DLP.据估计到2005年,微显示器将从现在占高端投影电视机市场的22%上升到55%.     

LCoS显示芯片设计与应用

LCoS显示芯片是一种反射式液晶显示器，其周边驱动器和有源象素矩阵使用CMOS技术制作在单晶硅衬底上，并以该晶片为基底封装液晶盒，因而拥有了小尺寸和高显示分辨率的双重特性。本文详细讨论了LCoS显示芯片的结构和用途，展示了LCoS显示芯片的设计方法及其实际设计结果。     

CMP平坦化技术在LCoS显示器中的应用

作为一类新型LCD技术的LCoS显示屏是一种反射式液晶显示器,其镜面反射电极的平整性了整个显示器的亮度和对比度等主要显示参数。本文详细讨论了CMP技术在LCoS液晶显示器中实现平坦化的机理。     

投影显示用LCoS显示芯片设计

首先确定了三片式投影用硅基液晶(LCoS)显示器应具备的显示性能参数,进一步提出LCoS显示芯片器件物理结构及其电路组成框图。从芯片整体角度介绍了设计方法,详述了运用CadenceEDA工具设计LCoS显示芯片的具体策略和相应步骤,给出了LCoS显示芯片的实际设计版图。     

LCoS微型显示器军事应用研究

介绍国外在微型显示器军事应用方面的状况，提出研发LCoS微型显示器配置我国士兵，着重论述了笔者在LCoS微型显示器方面的最新研究成果。     

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.     

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.     

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.     

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