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用于高密度三维集成的TSV设计

微纳电子技术 2023年第11期60卷 1857-1862页

作者：乔靖评贾士奇刘瑞文焦斌斌陈静宇孔延梅叶雨欣杜向斌云世昌余立航中国科学院微电子研究所新技术开发部微系统技术实验室北京100029 中国科学院大学集成电路学院北京100049 西交利物浦大学智能工程学院江苏苏州215123

三维集成技术的发展需要高密度和高深宽比的硅通孔(TSV)阵列。由于TSV填充材料与TSV衬底材料之间的热膨胀系数不匹配,TSV在使用或加工过程中会出现严重的热应力问题,造成器件失效甚至是晶圆损坏。设计了一种具有低热应力和高深宽比的中... 详细信息

三维集成技术的发展需要高密度和高深宽比的硅通孔(TSV)阵列。由于TSV填充材料与TSV衬底材料之间的热膨胀系数不匹配,TSV在使用或加工过程中会出现严重的热应力问题,造成器件失效甚至是晶圆损坏。设计了一种具有低热应力和高深宽比的中空TSV。单个TSV呈现橄榄球形状,TSV中部直径最大,其次是顶部的直径,最小的是底部直径。采用金属钨进行空心填充,因为钨的热膨胀系数与硅衬底的更匹配。当出现热失配时,空心填充使得空心结构为填充金属与硅的热膨胀提供了缓冲空间,能够大幅度减小TSV衬底所受到的热应力。仿真结果表明沿着TSV轴向方向和径向方向,热应力分别减小了62.4%和60.5%。基于设计的TSV结构,开发了一套基于8英寸(1英寸=2.54 cm)硅晶圆的工艺流程,成功实现了1600/mm^(2)超高密度阵列的加工制作,能够应用于高密度三维集成。

关键词：硅通孔(TSV) 三维集成热应力高密度高深宽比

Understanding Third Pole Atmospheric Dynamics and Land Surface Processes and Their Associations with the Cryosphere,Air Quality,and Climate Change--Preface to the Special Issue on Third Pole Atmospheric Physics,Chemistry,and Hydrology

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Advances in Atmospheric Sciences 2022年第7期39卷 1017-1020页

作者： yun Qian Hailong Wang Chuanfeng Zhao Chun Zhao Siyu Chen Xiao-Ming Hu shichang Kang Pacific Northwest National Laboratory RichlandWA 99354USA College of Global Change and Earth System Science Beijing Normal UniversityBeijing 100875China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China College of Atmospheric Sciences Lanzhou UniversityLanzhou 730000China Center for Analysis and Prediction of Storms University of OklahomaNorman 73019OKUSA State Key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences(CAS)Lanzhou 730000China

The Tibetan Plateau(TP),widely known as the Third Pole,is the highest and largest plateau on *** TP not only plays an important role in influencing the atmospheric circulation,surface energy budget,ecology,weather,and climate but also acts as the Asian Water Tower by holding the largest ice mass outside the polar regions to supply fresh water to over 1.4 billion people downstream in Asia(Qin et al.,2006).The observed historical warming and projected future warming over the TP are much stronger than the corresponding global average(Wang et al.,2008).Glaciers on the TP have been retreating extensively in recent decades,driven by atmospheric warming and circulation changes associated with increasing concentrations of greenhouse gases and aerosols in the atmosphere,light-absorbing particles(e.g.,black carbon,dust)on snow,and other factors(Duan et al.,2012;Qian et al.,2011;Zhao et al.,2020).In addition,due to the thermal and dynam-ical effects of the TP,as well as its proximity to the stratosphere,unique atmospheric boundary layer structures often develop over the TP and in the surrounding areas,which have important impacts on local weather,climate,and mixing and transport of atmospheric constituents(Zhao et al.,2020).The TP is considered a natural laboratory to study multi-sphere inter-actions.A systematic mechanistic understanding of the atmospheric chemical and microphysical processes,climate change,cryospheric variability,and the subsequent environmental impacts is particularly important in the context of the unpreceden-ted warming over the TP(Yao et al.,2019).

关键词： warming weather plateau

Spatial and temporal distribution of storms and their activities over the Bay of Bengal

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Research in Cold and Arid Regions 2009年第5期1卷 448-457页

作者： Xu Duan yun Tao CanQiong Cun shichang Guo LinYi LV Meteorological Institute of yunnan Province Kunming Yunnan 650034 China Meteorological Observatory of Dehong Prefecture in yunnan Province Luxi Yunnan 678400 China Atmospheric Science Department of yunnan University Kunming Yunnan 650091 China

By statistically analyzing the storm data from the Joint Typhoon Warning Center(JTWC) over the Bengal Bay during the period 1945-2006,it is found that the yearly averaged tropical cyclone(TC) number over the Bay of Bengal is 8.12,which takes place in any month of the whole year;February and March have the fewest TC *** TC numbers begin to increase starting in April and arrive at a peak in *** from TC over the Bay of Bengal,the tropical storms(TS) over the Bay of Bengal has two peak periods,appear in May and in October or November,*** regard to TS intensity,the super severe storm of H4 criterion appeared only one time during the period 1971-1986,but appeared eight times during the period *** monthly change of the original position,the averaged maintaining time,and the longest maintaining time of TS also have two peak values:They appear in April or May and in October or November,*** peak value of the original position in October or November is bigger than that in April or *** peak value of the average maintaining time and the longest main-taining time of the TS in April or May is bigger than that in October or *** landfall path is mostly moving toward northwest or west and accounts for 56.7 *** landfall path of the TS differs from that of TC in some *** main difference is that the numbers of the northwestern path and un-landfall of TS are less than those for TC,and the numbers of the western path and northeastern path of TS are greater than for *** of the landfall TS in the north-east path has a peak,it and the beginning of the rainy season in yunnan Province are closely related;it is on yunnan Province's early summer precipita-tion that they have a great impact.

关键词： storm over the Bay of Bengal the temporal and spatial distribution statistically characteristic TC or TS landfall

Linking atmospheric pollution to cryospheric change in the Third Pole region: current progress and future prospects

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National Science Review 2019年第4期6卷 796-809页

作者： shichang Kang Qianggong Zhang yun Qian Zhenming Ji Chaoliu Li Zhiyuan Cong Yulan Zhang Junming Guo Wentao Du Jie Huang Qinglong You Arnico K.Panday Maheswar Rupakheti Deliang Chen ?rjan Gustafsson Mark H.Thiemens Dahe Qin State Key Laboratory of Cryosphere Science Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences (CAS) CAS Center for Excellence in Tibetan Plateau Earth Sciences University of Chinese Academy of Sciences Key Laboratory of Tibetan Environment Changes and Land Surface Processes Institute of Tibetan Plateau Research (CAS) Pacific Northwest National Laboratory (PNNL) School of Atmospheric Sciences Guangdong Province Key Laboratory for Climate Change and Natural Disaster StudiesSun Yat-sen University Key Laboratory of Meteorological Disaster Ministry of Education KLME Nanjing University of Information Science and Technology (NUIST) International Centre for Integrated Mountain Development (ICIMOD) Institute for Advanced Sustainability Studies (IASS) Department of Earth Sciences University of Gothenburg Department of Environmental Science and Analytical Chemistry The Bolin Centre for Climate ResearchStockholm University Department of Chemistry and Biochemistry University of California San Diego

The Tibetan Plateau and its surroundings are known as the Third Pole(TP). This region is noted for its high rates of glacier melt and the associated hydrological shifts that affect water supplies in Asia. Atmospheric pollutants contribute to climatic and cryospheric changes through their effects on solar radiation and the albedos of snow and ice surfaces; moreover, the behavior and fates within the cryosphere and environmental impacts of environmental pollutants are topics of increasing concern. In this review, we introduce a coordinated monitoring and research framework and network to link atmospheric pollution and cryospheric changes(APCC) within the TP region. We then provide an up-to-date summary of progress and achievements related to the APCC research framework, including aspects of atmospheric pollution's composition and concentration, spatial and temporal variations, trans-boundary transport pathways and mechanisms, and effects on the warming of atmosphere and changing in Indian monsoon, as well as melting of glacier and snow cover. We highlight that exogenous air pollutants can enter into the TP's environments and cause great impacts on regional climatic and environmental changes. At last, we propose future research priorities and map out an extended program at the global scale. The ongoing monitoring activities and research facilitate comprehensive studies of atmosphere–cryosphere interactions, represent one of China's key research expeditions to the TP and the polar regions and contribute to the global perspective of earth system science.

关键词： atmospheric pollution cryosphere climate change the Third Pole coordinated monitoring network

基于VT-x技术的xen虚拟机扩展设备模组

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微计算机信息 2008年第7期24卷 293-294页

作者：孙世昶刘向东云健大连民族学院计算机学院辽宁大连116605

X86平台虚拟化技术在网络和嵌入式应用中具有广阔的发展空间,但是虚拟机对硬件设备的高效访问是一个有待研究的问题。目前流行的xen虚拟机环境中使用设备模组为虚拟机提供模拟的设备,随着硬件技术的发展,这种方法逐渐成为提高I/O性能的... 详细信息

X86平台虚拟化技术在网络和嵌入式应用中具有广阔的发展空间,但是虚拟机对硬件设备的高效访问是一个有待研究的问题。目前流行的xen虚拟机环境中使用设备模组为虚拟机提供模拟的设备,随着硬件技术的发展,这种方法逐渐成为提高I/O性能的一个瓶颈。文章给出一种扩展设备模组,为虚拟机提供一个访问真实设备的接口。介绍了其透明访问和SmartMapping两大特性。

关键词：虚拟化技术操作系统 I/O技术软件重构

现实疗法对离异家庭中学生应对方式的干预研究

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精神医学杂志 2018年第1期31卷 10-12页

作者：王赟郑云凤杨世昌新乡医学院第二附属医院河南新乡453002 新乡市第二中学

目的通过现实疗法对离异家庭中学生应对方式的干预,探讨现实疗法对离异家庭中学生心理问题的干预作用。方法抽取离异家庭学生(离异家庭组)和正常家庭学生(正常家庭组)各60人,采用中学生特质焦虑影响因素问卷(IIFTAS)和中学生应对方式量... 详细信息

目的通过现实疗法对离异家庭中学生应对方式的干预,探讨现实疗法对离异家庭中学生心理问题的干预作用。方法抽取离异家庭学生(离异家庭组)和正常家庭学生(正常家庭组)各60人,采用中学生特质焦虑影响因素问卷(IIFTAS)和中学生应对方式量表(CSSMSS)进行评定。从离异家庭组中随机抽取30人(试验组)进行现实疗法心理干预,于干预前及干预后第2、3、4周末采用IIFTAS、CSSMSS进行测查。结果正常家庭组CSSMSS问题解决、积极合理化解释因子分均高于离异家庭组(P<0.05)。正常家庭组CSSMSS发泄情绪因子分低于离异家庭组(P<0.01)。干预前后试验组IIFTAS社会不良影响、自卑倾向和人际关系困扰因子分比较差异均有统计学意义(P<0.05)。干预前后试验组CSSMSS问题解决、寻求社会支持、积极合理化解释和逃避因子分比较差异均有统计学意义(P<0.05)。结论现实疗法对于改善离异家庭中学生的焦虑情绪、掌握积极的应对方式有明显效果。

关键词：中学生现实疗法应对方式特质焦虑

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初探负压低氧储粮

现代食品 2023年第8期29卷 7-9页

作者：元世昌陈会会赵云郑州中粮科研设计院有限公司河南郑州450001

为响应国家全面建立粮食科技创新体系、实施“科技兴粮”战略的号召,本研究探究了一种新型的储粮技术——负压低氧储粮。基于此,本文讨论了气调储粮的历史及优势,试验验证了负压低氧储粮的效果,同时展望了实仓负压低氧储粮的可能性及应... 详细信息

为响应国家全面建立粮食科技创新体系、实施“科技兴粮”战略的号召,本研究探究了一种新型的储粮技术——负压低氧储粮。基于此,本文讨论了气调储粮的历史及优势,试验验证了负压低氧储粮的效果,同时展望了实仓负压低氧储粮的可能性及应用前景。

关键词：稻谷负压低氧粮食储藏

飞机部件自动对接的位姿标定计算及软件系统设计

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机械制造与自动化 2017年第1期46卷 146-149,172页

作者：关月赵宝李大伟卢小勇杜世昌沈阳飞机工业(集团)有限公司辽宁沈阳110034 上海交通大学机械与动力工程学院上海200240

飞机部件对接作为飞机总装过程重要步骤之一,是指将两个或多个相邻组件连接形成大型结构件的过程。国内飞机部件对接装配除了采用传统手动调整的方法外,逐渐引入了先进测量、定位调姿设备,但仍然存在对接自动化程度不高等问题。针对这... 详细信息

飞机部件对接作为飞机总装过程重要步骤之一,是指将两个或多个相邻组件连接形成大型结构件的过程。国内飞机部件对接装配除了采用传统手动调整的方法外,逐渐引入了先进测量、定位调姿设备,但仍然存在对接自动化程度不高等问题。针对这一问题,提出了一种飞机部件自动对接的位姿标定计算方案,并基于Qt和OSG API设计开发了飞机部件对接软件系统,为实现自动化对接提供了方案及软件支持。

关键词：飞机部件对接位姿标定计算软件系统

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基于微信平台的门诊诊疗系统

解放军医院管理杂志 2018年第9期25卷 885-886,894页

作者：杨世畅郝敏王赟程少荣周素月解放军总医院干部诊疗科北京100853 解放军总医院门诊部北京100853

目的研究基于微信平台的门诊诊疗系统对患者就诊效率及就诊体验的影响,提出改进措施。方法随机选取30名微信预约就诊患者与30名常规门诊就诊患者。对患者挂号耗时、候诊耗时、缴费耗时,取检查结果耗时、患者满意度进行统计,统计分析方... 详细信息

目的研究基于微信平台的门诊诊疗系统对患者就诊效率及就诊体验的影响,提出改进措施。方法随机选取30名微信预约就诊患者与30名常规门诊就诊患者。对患者挂号耗时、候诊耗时、缴费耗时,取检查结果耗时、患者满意度进行统计,统计分析方法采用独立样本t检验。结果两组患者均得到随访,其中A组平均年龄31. 32±6. 21岁,挂号时间0. 63±0. 22分,候诊时间11. 45±9. 15分,缴费时间0. 61±0. 20分,患者满意度10±0分; B组平均年龄31. 19±6. 74分,挂号时间6. 51±2. 46分,候诊时间47. 19±34. 49分,缴费时间9. 94±3. 71分,取报告时间116. 77±123. 16分,患者满意度9. 29±1. 66分。两组间患者年龄无明显差异,两组患者挂号时间(P <0. 05),候诊时间(P <0. 05),缴费时间(P <0. 05),取报告时间(P <0. 05),患者满意度(P <0. 05)存在明显差异。结论基于微信平台的门诊诊疗系统可有效减少患者挂号时间、就诊前等待时间、缴费及取检查报告时间,可提高患者对就诊过程的满意度。

关键词：微信平台门诊诊疗系统移动医疗