我国信息产业拥有自主知识产权的关键技术和重要产品目录（电子元器件和材料）

关键技术 ①大投料量、高均匀晶体材料制备技术；②大直径晶体材料及外延片工艺生长和规模化生产技术；③低位错密度的化合物半导体外延技术；④纳米级粉体制备工艺技术；⑤低温共烧工艺技术；⑥陶瓷薄膜生长技术；⑦微组装技术；⑧高频、高稳定、大带宽、频率器件设计和制造技术；⑨多层、柔性、柔刚结合和绿色环保印制电路板技术；⑩阴极可靠性增长技术；（11）真空电子器件的宽频带、高效率技术；（12）传感器和敏感元器件技术；（13）新型绿色电池技术。     

设备材料

霍尼韦尔投资1350万美元扩建亚太研发中心；中科晶电砷化镓材料开始规模化生产；Marposs在中国扩充精密置仪产能。     

多晶硅氢化还原工艺电气优化探析

多晶硅的规模化生产是个新兴行业,其中氢化还原工艺是整个基于改良西门子法生产多晶硅的重要环节,直接决定产品质量和产品的生产效率,是整个多晶硅生产电耗最大的环节。因此,对氢化还原电气设备的安装及使用的研究有着极其重要的意义。本文以某项目氢化还原电气设备接地保护、三相平衡等案例为立足点,对常见的一些问题进行了探析。     

21世纪电子元件的发展趋势

２１世纪电子元件的发展趋势主要是元件片式化、包装编带化、生产专业化和规模化、工艺精细化、生产环境“绿色化”,电子元件企业要创新管理,并在生产过程中符合社会保障的要求。鉴于市场日益国际化,电子元件的发展更应顺从知识经济规律。     

本期推荐专家视点

光纤光缆用材料应不断技术创新，实现规模化规范化生产，整合发展,以优质材料和精湛工艺，服务于高速发展的中国信息化,FTTH一种适合FTTH应用的全石英光纤.     

硅二极管引线镀锡工艺及镀液维护

该文针对影响硅二极管引线镀锡质量问题，对镀锡工艺及镀液维护进行了研究探索，选择了酸性光亮剂镀锡工艺及其相应的镀液维护方法，经技术检测和生产实践证明；采用该工艺生产硅二极管，不但产品质量好，而且有较大的经济效益。     

SOI晶圆供应商称已经为下一代晶体管制造做好了量产准备

不久前在日本京都举行的VLSI技术研讨会上提交的研究结果显示,采用超薄衬底的SOI晶圆和22纳米工艺制造的器件和采用体硅晶圆、22纳米工艺制造的器件相比,性能的提高达到了25%。包括MEMC、SEH、Soitec等在内的几家主要SOI晶圆供应商表示,他们已经为超薄衬底的SOI晶圆的规模化生产做好     

工艺制造

中芯国际上海12英寸生产线6月装机；茂德获准在大陆投建采用0．18微米工艺晶圆厂；BCD采用先进BiCMOS工艺生产单路低电压运算放大器；华虹NEC获Cypress 0．13微米NVM工艺授权；     

硅二极管引线镀锡工艺及镀液维护

该文针对影响硅二极管引线镀锡质量问题，以镀锡工艺及镀液维护进行了研究探索，选择了酸性光亮剂镀锡工艺及其相应的镀液维护方法，经技术检测和生产实践证明；采用该工艺生产硅二极管，不但产品质量好，而且有较大的经济效益。     

CS-38新型印制电路板铜基上化学镀银工艺

介绍了一种在印制电路板铜基上化学镀银的新工艺CS-38,它是一种既可焊接又能键合（Bonding）并能有效取代热风整平（HASL）的新工艺。讨论了各组分及操作条件对镀银液及镀银层的影响,确定了最佳配方和操作工艺。结果表明：该工艺镀银液稳定．防变色能力强,特适合规模化生产。     

智能通信在楼宇自控系统中的应用

随着计算机技术、控制技术、通信技术及信息技术的飞速发展,人们对生活、办公环境安全性、舒适性的要求日渐增长,智能建筑应运而生。楼宇自动化控制系统是智能建筑的一个重要组成部分。通过结合具体的智能楼宇控制工程项目,在介绍系统概况的基础上,给出了系统的总体设计方案及子系统的监控方案,具有一定的实用价值。     

Advances in millimeter-wave subsystems in Japan

The authors describe the development trends and results of millimeter-wave systems in Japan in such fields as communication, radar, and measurement systems. The applications included are the W-40G waveguide transmission communication system, an automobile traffic control system using the 60-GHz band, a collision avoidance radar system for an automobile, a plasma electron density measuring system, and satellite communication. The authors describe the development of devices such as high-power FET amplifiers, traveling wave tube amplifiers (TWTAs), IMPATT amplifiers, low-noise amplifiers, and monolithic microwave integrated circuit (MMIC) devices used in constructing the millimeter-wave systems     

Progress in electrophotography in Western Europe

A review is given of the progress in electrophotographic science and technology in Western Europe during the years 1967 to early 1971. University research work is mainly directed towards two areas: 1) the electrical and physical properties of photoconductors, such as selenium, chalcogenides, oxides, and organic materials; and 2) the sensitization of these photoconductors. Industrial research teams report on the preparation of electrophotographic layers on development and on image evaluation. A bibliography including scientific papers and patents published on this subject during said period completes this review.     

Switching conduction in ion-irradiated layers in GaAs

Experiments have been performed to investigate whether switching phenomena are observable in ion-irradiated GaAs. It is found that the V/I characteristics of H2+-and N+-irradiated layers show both negative resistance and switching from a high resistance to a low resistance state. Ion irradiation may thus be a useful method of fabricating switching devices.     

Electricity in China-generation in the People's Republic

Before the establishment of the People's Republic, China was a semi-colonial, semi-feudal society plagued by foreign interventions and internal power struggles. It was against this background that the electrical industry went through its infancy. Today, the People's Republic of China is facing an acute energy shortage, posing a problem which must be quickly overcome if the country's rapid industrialisation is to continue as planned. The author presents a brief history of power generation in China from 1949 to 1983 and examines possibilities for the future     

Telecommunications' role in national development in Ghana

Ghana has recognized the need for efficient and reliable telecommunication services. The widespread availability of these services will promote the nation's economic advancement and the decentralization of the government's activities. To achieve the objective of bringing telecommunications to all the people of Ghana, private sector participation is considered essential as a source of management skills, technology, and financing that will be required for the provision of services. In order to attract such participation, Ghana is putting in place the necessary policy, institutional, and regulatory frameworks to create an enabling environment for private sector investment in the telecommunication sector     

IT安全化安全IT化--信息安全产业发展问题与思考

信息安全在IT业中的角色演变 在当今信息时代,信息技术日新月异,信息产业已经成为拉动GDP增长的第一支柱产业,并以每年20%—30％的速度迅猛发展。其发展过程也经历了从传统IT向新型IT的转变,其中一个重要的转变因素便是信息安全。 1.传统IT与信息安全的关系。传统IT涵盖了五大类:通信、网络、计算机、软件、电子材料及元器件。这五类IT行业本身的发展一度呈现结构失衡:一方面过度投资到“信息高速公     

Recent Progress in Communication Theory in Japan

This paper reviews recent progress in communication theory in Japan, mainly in the past three years. The topics to be discussed include 1) waveform transmission in band-limited channels and active transmission lines, 2) source-coding problems such as optimal quantizing characteristics, delta modulation, and linear transformation, 3) transmission codes, where mainly multilevel codes have been discussed, 4) new information transmission and modulation schemes, and 5) theories of traffic and switchingsystem design.