薄膜电阻器用磁控溅射高阻靶材

在用磁控溅射技术制备金属膜电阻器的生产过程中,靶材非常关键,它制约着金属膜电阻器的精度、可靠性、稳定性和电阻温度系数等性能.根据理论分析,提出了高稳定性的高阻靶材的最佳成分比例.自行设计了熔炼模壳及冷却方法,有效解决了因Si元素的脆性而引发的靶材开裂问题.溅射的金属膜电阻器,其高温储存试验、寿命试验、耐湿试验均达到了国家有关标准.     

薄膜电阻器用磁控溅射高阻靶材

在用磁控溅射技术制备金属膜电阻器的生产过程中,靶材非常关键,它制约着金属膜电阻器的精度、可靠性、稳定性和电阻温度系数等性能.根据理论分析,提出了高稳定性的高阻靶材的最佳成分比例.自行设计了熔炼模壳及冷却方法,有效解决了因Si元素的脆性而引发的靶材开裂问题.溅射的金属膜电阻器,其高温储存试验、寿命试验、耐湿试验均达到了国家有关标准.     

ZnO压敏电阻器在稳态湿热试验中的性能变化与分析

通过对ZnO压敏电阻器试验结果的分析,探讨其在稳态湿热试验中引起性能变化的因素,提出要提高产品的耐湿性能,必须在包封料选择和瓷体制作工艺上加以改进。     

Zn0压敏电阻器在稳态湿热试验中的性能变化与分析

通过对ZnO压敏电阻器试验结果的分析，探讨其在稳态湿热试验中引起性能变化的因素，提出要提高产品的耐湿性能，必须在包封料选择和瓷体制作工艺上加以改进。     

RXF21型抗电涌线绕电阻器及其应用

线绕电阻器广泛用于电子节能灯和充电器等产品,本文介绍了一种新型RXF21型抗电涌线绕电阻器的应用方法.重点论述线绕电阻器耐负荷和负载短路保护功能以及抗电涌冲击性能.     

叠层压敏电阻器及其发展

叠层压敏电阻器比单层压敏电阻器的耐浪涌能力高,且有利于实现低压化和小型化,可满足SMT发展的需要。介绍了国外开发的几种叠层压敏电阻器的结构及其特性。     

共沉淀法制备ZnO压敏电阻复合添加剂

利用化学共沉淀法制备zn0压敏电阻器复合添加剂,讨论了新方法对ZnO压敏电阻器电学性能的影响.实验结果证明,合理的共沉淀配方.可以显著提高ZnO压敏电阻器的8/20μs通流能力以及2ms能量耐量值,并且对小电流性能也有部分提高.     

潮湿对精密线绕电阻器性能的影响

1 引言 精密线绕电阻器是电阻器中一个历史悠久的品种,它具有精度高、稳定性好、温度系数小、噪声低等优点。广泛应用于通信电子设备、精密仪器仪表和自动控制系统中。 实践表明,潮湿对线绕电阻器的性能影响极大。线绕电阻器在潮湿条件下贮存,使用时,会发生阻值减小、阻值增大、阻值不稳以及断线等故障,失效率相当高。在潮湿     

液相法制备ZnO压敏电阻器粉料

用液相法制得ＺｎＯ压敏电阻器粉料。与用传统粉料制备的ＺｎＯ压敏电阻器相比,用该粉料制成的ＺｎＯ压敏电阻器的一致性更好、耐电流冲击能力更强、压敏场强更高。     

金属氧化膜电阻器

一、概述金属氧化膜电阻问世后引起了各国的很大重视,它是一种新型的电阻器,具有耐高温、耐潮湿、单位面积耐功率大、有良好的化学稳定性、温度系数容易控制、噪音小、制作工艺简便等优越特性,同时导电氧化膜的形成在高温氧化气氛条件下进行,毋需特殊设备便能生产,大大地简化了操作过程,减轻了生产设备的维护工作,而且原材料来源充足,使制得的产品成本较低.     

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.     

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.     

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     

Call for Papers—Feature Topic,Vol.12,No.7,2015

正Information Centric Networking Information-Centric Networking(ICN) is an emerging direction in Future Internet architecture research,gaining significant tractions among academia and industry.Aiming to replace the conventional host-to-host communication model by a data-centric model,ICN treats data content as the first     

JOURNAL OF ELECTRONICS(CHINA)

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NOTICE OF CHANGING JOURNAL OF ELECTRONICS （CHINA） TO MICROSYSTEMS ＆ NANOENGINEERING

正Journal of Electronics(China)(JE)was founded in 1984,sponsored by the Institute of Electronics,Chinese Academy of Sciences.JE is one of the first English academic journals in China in the field of Electronics and Information technology.The journal was published quarterly since it was launched in 1984 to 2003,then it is published bimonthly till now.During