透过CEF西安展看国防电子新发展

工业与国防电子领域,一直是高性能、高可靠性、高精度电子技术和产品角逐的市场,也是一个持续稳定增长的市场。陕西跃居全国第一军工大省,陕西国防军工系统科技综合实力强,包括核工业、航空、航天、兵器、船舶和地方军工200余家企事业单位,其中生产企业61家、研究所27家,各类科技人员近10万人,拥有各种电子试验设备10万多台,基本形成了我国重要的国防工业科研、设计、试验、生产基地。     

参观西部国防电子展六大亮点

陕西跃居全国第一军工大省 陕西西安西部大开发桥头堡，陕西跃居全围第一大军工大省。国防电子工业已被陕西省省委、省政府列为陕西四大优势产业之一。陕西国防军工系统科技综合实力强，包括核工业、航空、航天、兵器、船舶和地方军（不含电子、部队在陕企业、共有近二百家企事业单位，其中生产企业61家、研究院所27家；职工28万人，其中各类科技人员9．7万人；拥有各种电子试验设备10万多台（套）。基本形成了我国重要的国防工业科研、设计、试验、生产基地。     

简述国外军事工业军民结合的模式

建立寓军于民新体制是我国国防科技工业新世纪的一项战略任务，其意义深远但工程巨大，特别是没有其他社会主义国家的实践可以借鉴。而资本主义世界在将军工生产融人国民经济，用军工研制和生产能力为民用经济服务，用民用研制和生产能力为军工服务领域，却有许多理论和实践，并且形成了四种模式。“他山之石，可以攻玉”。批判地借鉴它们，有利于探索符合我国国防科技工业实际情况的寓军于民新体制。     

中国电子科技集团公司第五十一研究所

中国电子科技集团公司第五十一研究所成立于1978年，是军工一类整机研究所，是一个以科研为主，科研、生产、经营一体化的高新技术研究所。本所长期从事雷达对抗系统及设备的研发和制造，为我军和国防建设提供了大量的现代化电子战装备。     

立足西安 展望未来

“第十二届中国西部国际电子工业暨国防电子博览会及第二届中国军民两用科技工业（西安）展览会”，在成功举办往届博览会的基础上，本届大会将更加突出专业化、规模化、国际化。博览会将重点邀请美、英、德等国和我国东南沿海发达地区的企业参加展出，展会同期召开“陕西省军工配套产品供需洽谈会”、“西部国防电子工业论坛”，届时政府领导、院士、专家、企业代表将齐聚一堂，共同为电子工业发展进言献策。     

电子工业部召开军工电子工业可靠性经验交流暨工作会议

为进一步推动“九五” 军工电子可靠性工作的深入开展,电子工业部于1997年5月5日至5月7日在南京召开了军工电子工业可靠性经验交流暨工作会议.电子工业部吕新奎副部长到会并做工作报告,电子工业部科技与质量监督司、军工司、军工基础局、总参通信部可靠性管理办公室、江苏省电子工业厅等部门的领导和厂所代表共96人出席了会议.     

中国电子科技集团公司第五十一研究所

中国电子科技集团公司第五十一研究所成立于1978年，是军工一类整机研究所，是一个以科研为主，科研、生产、经营一体化的高新技术研究所。本所长期从事雷达对抗系统及设备的研发和制造，为我军和国防建设提供了人量的现代化电子战装备。     

工作简讯

军工电子产业承制单位质检工作经验交流与研讨会在京召开军工电子产品承制单位质量检验工作经验交流与研讨会于1997年12月22日至26日在北京召开。部科技与质量监督司处长、军工质量体系工作部主任陈章豹、张荣发高工，军工质量体系工作部陈报林常务副主任等参加了会议。会上，陈章豹传达了国防科工委’97国防科技工业质量工作会议精神，并作了重要讲话；中电质协检验工作部方金根主任受部委托通报了军工电子企事业质量检验工作状况调查结果。会议着重讨论了《关于加强军工电子产品承制单位质量检验工作的意见（讨论稿）》，提出了修改意见。…     

军工行业质量管理现况及监管对策思考

质量控制想来是国防科技工业发展战略的重中之重.首先,与任何军事企业的效益相比,军工产品的质量直强关系到战争的胜利和国家、民族安全,其重要性可见一斑.其次,技术密集,复杂系统的军工产品是高投入,高风险产业,因而在研发、生产过程中,不允许出现一点错误.为了确保军工产品的高质量,党和国家一直将“军工产品质量第一”作为长期国策.因此,军工企业的以高质量为方向,以提高军工产品的可靠性为重心,以促使军工产业的质量取得突破性的进展为目标,加强管理,建立新的质量管理模式,提高军工产品和军工产品质量体系质量保证能力,促进可持续发展国防科技工业.该文分为两大部分,首先重点分析了军工行业质量问题现状及原因,第二部分则是针对目前军工产业质量现状提出的相应对策及思考.     

激光内雕工业的发展状况

激光器现已广泛应用于军工、医疗、科研、工业加工等诸多领域.在工业加工领域的内雕行业中,半导体激光器即将成为内雕机的主流,本文针对激光内雕机的现状及发展趋势进行了综述.     

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.     

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.     

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.     

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.     

Curved crystal spectrometer for the measurement of X-ray lines from laser-produced plasmas

In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal （200） （2d = 0.4027 nm） is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line（w）, the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line（x）, the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines（y）, the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line（z） in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line（q） in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution（λ/△ 2） is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.     

Preparation and Characterization of TaN ALD Precursors

High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET ＞ PDMAT ＞ TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.     

Electronic Structure of Semiconductor Nanocrystals

This paper reviews our recent development of the use of the large-scale pseudopotential method to calculate the electronic structure of semiconductor nanocrystals, such as quantum dots and wires, which often contain tens of thousands of atoms. The calculated size-dependent exciton energies and absorption spectra of quantum dots and wires are in good agreement with experiments. We show that the electronic structure of a nanocrystal can be tuned not only by its size,but also by its shape. Finally,we show that defect properties in quantum dots can be significantly different from those in bulk semiconductors.     

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.     

Critical Stage Rule-Based Real Time Dispatch（RTD）System in Highly-Mixed-Products （HMP） FAB

An improving utilization and efficiency of critical equipments in semiconductor wafer fabrication facilities are concerned. Semiconductor manufacturing FAB is one of the most complicated and cost sensitive environments. A good dispatching tool will make big difference in equipment utilization and FAB output as a whole. The equipment in this paper is In-Line DUV Scanner. There are many factors impacting utilization and output on this equipment group. In HMP environment one of the issues is changing of reticule in this area and idle counts due to load unbalance between equipments. Here we'll introduce a rule-based RTD system which aiming at decreasing the number of recipe change and idle counts among a group of scanner equipment in a high-mixed-products FAB.