硅PIN光电探测器光电特性的模拟计算

采用计算机数值分析软件对硅PIN光电探测器的光电特性进行了研究;对硅PIN光电探测器的结构及电势分布作了详细讨论,同时讨论了其正向特性、反向特性和光敏特性.这对了解和改进器件特性有重要作用.     

64×64元GaN基紫外图像传感器的设计

介绍了64×64元GaN基紫外图像传感器的结构设计和制作过程,以及需要注意的关键技术.     

General dynamic equation and dynamical characteristics of viscoelastic Timoshenko beams

In this paper, a governing differential equation of viscoelastic Timoshenko beam including both extension and shear viscosity is developed in the time domain by direct method. To measure the complex moduli and three parameters of standard linear solid, the forced vibration technique of beam is successfully used for PCL and PMMA specimens. The dynamical characteristics of viscoelastic Timoshenko beams, especially the damping properties, are derived from a considerable number of numerical computations. The analyses show that the viscosity of materials has great influence on dynamical characteristics of structures, especially on damping, and the standard linear solid model is the better one for describing the dynamic behavior of high viscous materials.     

LED显示屏条状缺陷原因判定及修复验证的质量鉴定应用案例

为了解决LED显示屏的条状缺陷问题,通过对电路结构进行观察分析,并进行实验测试,发现条状缺陷通常是由于串联模组电流输入端的片个LED模块出现故障。从而导致LED显示屏出现条状缺陷,因此．LED显示屏出现条状缺陷,其原刚通常是该条状模组的电流输入端的首个LED出现故障,如断路问题：     

剥离技术在GaN基紫外图像传感器中的应用

采用剥离技术,实现了GaN基紫外探测器件与硅读出电路的倒焊对接,对提高GaN基紫外图像传感器的电学特性起到了重要的作用.介绍了剥离技术的原理,实验结果分析及应用.     

基于Improved-Romer模型的经济一体化对区域经济增长影响的分析

以Romer模型为基础,通过构造一个两区域模型,研究了经济一体化对区域经济增长的影响,证明了实行经济一体化后每个区域的经济增长率均能得到显著提高,并阐明了经济一体化促进各区域经济增长的途径主要有两条:一是规模效应,即经济一体化使得各区域中间产品和最终产品的市场规模得到扩大而获得的规模收益;二是技术扩散效应,即经济一体化...     

粘弹性Timoshenko梁的动力学普遍方程及其动态特性分析

本文用直接力法在时域内推导了粘弹性Timoshenko梁的控制微分方程,它同时计及了材料的拉伸粘性和剪切粘性.为了测定标准线性固体的复模量和三参数,对有机玻璃(PMMA)和尼龙6(PCL)试件成功地应用了强迫振动梁技术.通过大量数值计算,对粘弹性Timoshenko梁的动力特性,特别是阻尼特性进行了分析.结果表明,材料粘性对结构的动力特性,尤其是对阻尼有较大影响。对于高粘性材料,其动力学性质用标准线性固体模型来描写是合适的.     

GENERAL DYNAMIC EQUATION AND DYNAMICAL CHARACTERISTICS OF VISCOELASTIC TIMOSHENKO BEAMS

In this paper,a governing differential equation of viscoelastic Timoshenko beamincluding both extension and shear viscosity is developed in the time domain by directmethod.To measure the complex moduli and three parameters of standard linear solid,theforced vibration technique of beam is successfully used for PCL and PMMA specimens.The dynamical characteristics of viscoelastic Timoshenko beams,especially the dampingproperties,are derived from a considerable number of numerical computations.Theanalyses show that the viscosity of materials has great influence on dynamicalcharacteristics of structures,especially on damping,and the standard linear solid model isthe better one for describing the dynamic behavior of high viscous materials.     

纳米材料在光电探测器中的应用

以纳米颗粒、纳米管、纳米线材料制作的紫外探测器、红外探测器为例,综述了当前纳米光电探测器的开发现状和发展趋势.