从专利探讨TSV发展态势

本文从TSV专利的角度,研究和探讨了TSV的发展态势。预计未来几年TSV仍是一个研究热点,专利和发展还会继续增长;美、日、韩等国际著名企业和中国台湾企业在TSV技术研究方面基础好,未来几年的竞争极有可能在这些企业之间展开;中国市场是一个庞大的市场,已经受到各大公司的青睐。中国本土企业更应该在技术和专利上大力发展,奋起猛追,争取在TSV市场能占有一席之地。     

A study on the real-time radiation dosimetry measurement system based on optically stimulated luminescence

The optically stimulated luminescent (OSL) radiation dosimeter technically surveys a wide dynamic measurement range and a high sensitivity. Optical fiber dosimeters provide capability for remote monitoring of the radiation in the locations which are difficult-to-access and hazardous. In addition, optical fiber dosimeters are immune to electrical and radio-frequency interference. In this paper, a novel remote optical fiber radiation dosimeter is described. The optical fiber dosimeter takes advantage of the charge trapping materials CaS:Ce, Sm that exhibit OSL. The measuring range of the dosimeter is from 0.1 to 100 Gy.     

箔条在电子战中的战术运用研究

介绍了箔条的特性,阐述了箔条干扰的基本原理,并根据其特点对箔条进行战术应用研究,从战法、战术的角度分析和总结了箔条无源干扰的作战使用,便于箔条在电子战中的更好应用.     

荧光材料SrS:Eu,Sm在辐射剂量测量中的应用

采用碳还原法合成了SrS：Eu,Sm,并对光激励发光材料SrS：Eu,Sm的辐射剂量特性进行了研究。将SrS：Eu,Sm材料做成PMMA剂量片在^60Coγ源下接受辐照,然后用自己搭建的在线实时测试系统对剂量片发出的荧光信号进行测量。主要探讨了光激励发光材料SrS：Eu,Sm在辐射剂量测量中的应用。     

基于自适应遗传算法多项式预失真技术研究

提出了一种基于自适应遗传算法的多项式预失真补偿方法,该方法的基本原理是利用模拟进化类算法对目标函数进行逼近,对待求解参数进行辨识,进而得到多项式预失真模型。该算法具有良好的收敛性、全局性和鲁棒性,且具有较高的计算效率,为解决数字预失真自适应算法提供了一个新的参考。同时将自适应遗传算法应用于功放线性化设计中并进行了仿真。仿真分析表明,采用模拟进化类的遗传算法对功放失真抑制效果明显。     

The study on optically stimulated luminescence dosimeter based on the SrS：Eu,Sm and CaS：Eu,Sm

With the increasing use of nuclear energy, there is a need for a wider range of efficient dosimeters for radiation detection and assessment. There has been a tremendous growth in the development of radiation detectors and devices in the past few decades. In recent years, the development of new materials for radiation dosimetry has progressed significantly. Alkaline earth sulfides （AES） have been known for a long time as excellent and versatile phosphor materials. In the present investigation, a number of phosphor samples such as mono-, binary and ternary sulfides of alkaline earths （II^a-VI^b） have been prepared and their TL properties have been studied with respect to exposure （x-ray） response and fading. In this paper, some results on SrS：Eu, Sm and CaS：Eu, Sm phosphors are presented. A type of novel OSL dosimeter is described. The dosimeter takes advantage of the characteristics of charge trapping materials SrS：Eu, Sm and CaS：Eu, Sm that exhibit optically stimulated luminescence （OSL）. The measuring range of the dosimeter is from 0.01 to 1000 Gy. The OSL dosimeters provide capability for remote monitoring radiation locations which are difficult to access and hazardous. This equipment is relatively simple, small in size and has low power consumption. The device is suitable for space radiation dose exploration. In addition, it also can be used in IC and other radiation occasions and has good prospects.     

QuEChERS结合柱净化的超高效液相色谱-串联质谱法测定有机肥中46种抗生素

建立了超高效液相色谱-串联质谱(UPLC-MS/MS)同时测定有机肥中磺胺类、喹诺酮类、大环内酯类46种抗生素的分析方法。样品用乙腈-EDTA缓冲溶液(p H 10.0)提取,盐析后离心分层,乙腈层按Qu ECh ERS法,采用吸附剂净化;缓冲溶液层经HLB柱净化。ACQUITY UPLC BEH C18柱用作色谱分离,以2mmol/L甲酸铵水溶液(含0.1%甲酸)-甲醇为流动相进行梯度洗脱;电喷雾电离源正离子(ESI+)多反应监测(MRM)模式检测,基质外标法定量。46种抗生素在1~200μg/L范围内线性关系良好,相关系数(r2)为0.996 6~0.999 9。在25,100,400μg/kg加标浓度下,3类抗生素的回收率分别为67.8%~95.6%,65.6%~89.4%和66.6%~107.8%,相对标准偏差为0.4%~11.9%;方法检出限(S/N=3)为0.6~4.6μg/kg,定量下限(S/N=10)为2.1~15.4μg/kg。     

半导体制造工艺中铝金属突起缺陷的研究

通过对铝金属成膜工艺参数实验和研究发现,提高铝成膜温度、弱化铝的(111)晶向以及增加抗反射层Ti的厚度都可以减少或者避免铝金属突起这种缺陷的发生。在半导体生产制造过程中,铝线在后续IMD(层间膜)成膜过程中容易产生孔洞缺陷。对于该缺陷业界有多种解决方法,其中在铝线刻蚀后把烘烤温度增加到400～450度是一种比较彻底的解决方法。但是增加烘烤温度很容易导致另外一种缺陷,即铝金属突起,这种缺陷在大块铝线的侧面更容易产生,严重时     

“通信原理”课程教学质量指标体系的构建与评价

授课质量评价是检验教学质量的有效方法。本文结合＂通信原理＂课程的教学现状,建立了一种教学质量评价指标体系,确定了影响教学质量的因素。我们采用模糊数学理论,给出了多级模糊综合评判模型及模糊评判矩阵,用Delphi法确定了主因素权重系数,以模糊度量方式评价了＂通信原理＂课程教学质量。实例分析结果验证了本文所述方法能减少评估中的主观影响,提高了评估的准确性和公正性。