排序方式: 共有125条查询结果,搜索用时 15 毫秒
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研究了铝与玻璃的阳极连接方法,采用公共阳极法和直流电源实现了玻璃/铝/玻璃的多层连接,这为多层晶片的连接以及复杂微电子装置的没计提供方法和理论基础.通过SEM、EDS和GD-OES分析手段分析了玻璃/铝的结合界面.采用instron-5544万能材料试验机进行拉伸实验发现断裂发生在玻璃基体中,这表明界面的结合强度高于玻璃基体的强度,SEM断口形貌分析表明断裂界面呈贝壳状的解理断面,说明运用公共阳极可以实现多层晶片的良好键合.实验表明在温度为350℃ ~ 450℃,电压在为400~ 800V时,玻璃-铝-玻璃的键合质量较高. 相似文献
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为了提高S304/Q235复合材料矫直过程的精度,在Abaqus有限元软件中分析了双金属复合材料板的弹塑性变形和矫直过程。此外,对不同厚度比双金属复合板的中性层偏移进行了分析研究。结果表明,双金属复合板的中性层偏移量取决于复合板的屈服强度和厚度比。将理论计算、数值模拟和实验结果进行对比,得到了中性层偏移量的拟合公式,验证了其正确性,分析了中性层偏移状态的动态变化。本研究为建立高精度矫直力模型提供了理论依据。 相似文献
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在一定连接工艺参数下,进行ZrO2电解质陶瓷与Al的阳极键合工艺试验,并在万能电子材料试验机上对ZrO2电解质陶瓷与Al的阳极键合连接接头进行剪切强度试验.采用扫描电镜、超轻元素能谱仪及X射线衍射仪分析连接界面微观组织、成分分布、界面相结构及剪切断口.试验结果表明,ZrO2的表面活化处理提高了ZrO2/Al的连接性,结合界面在阳极键合条件下形成高的氧离子迁移率及静电场力是促进结合的主要因素;过渡区ZrO2-SiO2-Al2O3 的多界面固相反应是结合形成的主要原因;ZrO2/Al接头的剪切断裂位置位于ZrO2与过渡区的结合界面,启裂区位于ZrO2的近界面区,扩展并终断于Al与过渡区界面;终断区断口形貌表明Al/过渡区界面具有较高的接合质量. 相似文献
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Residual stresses and deformation of static bonding multi-layer Pyrex7740 glass and aluminum have important effects on performances of bonding parts. The stress and strain finite element analysis of anodic bonding can optimize the structure and process design, reduce the workload of the experiments, shorten the production cycle, improve the bonding quality, and reduce the process costs. In this paper, residual stresses and deformation in the static bonding two-layer(glass/aluminum), three-layer(glass/aluminum/glass),five-layer(glass/aluminum/glass/aluminum/glass)and seven-layer(glass/aluminum/glass/aluminum/glass/aluminum/glass) samples have been analyzed using nonlinear finite element simulation software MARC. The simulation results show that the shear stress distribution and deformation distribution in different multi-layer glass and aluminum samples are similar. The stress distribution along thickness at different typical positions in all multi-layer samples has characteristics of pulse pattern, which has pulse peak at the position of transition layers and then decreases abruptly to the minimum value at the positions of glass and aluminum. The maximum shear stress is located in the outside surface area in the transition layer between the top unconstrained glass layer and aluminum layer. The displacement distribution along thickness in all multi-layer samples increases gradually from the constrained bottom glass layer to the top unconstrained glass layer with abrupt step increase in the aluminum layers. The maximum deformations occur in aluminum layers. It is found that the minimum deformation distortion and the minimum shear stress occur in the three-layer static bonding sample. 相似文献
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为了促进微机电系统封装技术的发展, 设计了应用聚氧化乙烯 (polyethylene oxide, PEO) 作为主体材料, 通过掺杂不同的锂盐获得聚合物固体电解质用于阳极键合进行封装.阳极键合对材料的要求主要是具有离子导电性, 因此采用X射线小角衍射 (small-angle X-ray scattering, SAXS) 和傅里叶红外光谱 (Fouriex transform infrared radiation spectroscopy, FTIR) 对设计的高分子固体电解质的导电机理进行分析.研究结果表明:LiClO4的离解能更小;锂离子的迁移数更多;随着其质量分数的增加, 电导率更高;通过键合结果发现, PEO-LiClO4和金属铝键合界面过渡层的产生是两者得以焊合的关键. 相似文献
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