共查询到20条相似文献,搜索用时 124 毫秒
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王慧 《电子工业专用设备》2021,50(2):29-32
阐述了LTCC/HTCC器件制造领域内微孔填充工艺的发展现状和生产设备的发展趋势,介绍了高压力填孔设备的核心部件,并对该部件的机械结构、电气控制原理进行了详细分析;该部件可实现最大1000 N填孔压力输出,能满足高黏度金属浆料的填孔工艺需求;同时针对设备实际应用,引入正交试验设计方法,协助工艺人员快速掌握设备操作工艺. 相似文献
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文章主要介绍线路板行业重要三个湿制程:沉铜、板电、图电对孔内无铜的影响,通过对三个湿制程的流程优化及设备改造,大幅度降低了孔内无铜的报废率。同时,文中详细介绍了沉铜、板电、图电产生孔内无铜的原因,缺陷模式及对应行动。特别是在沉铜,板电及图电线通过引进新型震动在线检测警报系统,基本上改善了沉铜气泡型,电铜气泡型及电锡气泡型孔内无铜问题。 相似文献
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文章在PCB蚀刻理论的基础上,对蚀刻过程进行了流体力学分析,分析了不同纵横比线间药水流动情况,以及纵横比与药水流动、扩散层厚度变化的关系等,并通过试验进行了验证,可为业界精细线路蚀刻制作提供一定价值的参考和借鉴。 相似文献
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按照印制板生产工艺步骤顺序来研究在何处可能出现孔内空洞现象,对存在有缺陷的印制板用金相剖切的方法,进行原因查找和缺陷分析,如识别空洞形状、位置等,并指出采取的方法措施,达到提升生产线加工能力和品质目的。 相似文献
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介绍电镀阻镀的典型缺陷模式,结合过往的经验及进行一系列DOE试验,层别出每种缺陷的具体成因,大幅度低了电镀阻镀造成的孔破报废,也降低而流失到客户端的风险。 相似文献
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Judy Simon Nellore Kapileswar Polasi Phani Kumar Mathiyalakendran Aarthi Elaveini 《International Journal of Communication Systems》2024,37(3):e5659
Underwater IoT is incredibly helpful in monitoring a variety of jobs, from instrument monitoring to climate recording, from pollution management to natural catastrophe forecasting. Nevertheless, there exist various issues that have an impact on a network's efficiency such as the formation of void holes, excessive EC, and low PDR. As a result, the IGOR protocol is suggested in this study to increase PDR by reducing the percentage of void hole occurrence. The developed routing protocols' scalability is also examined. Here, the parameter optimization for the EC minimization and PDR maximization is performed by a meta-heuristic optimization algorithm referred to as TSA. In order to verify that the suggested protocol is EC-optimal by calculating the viable areas. In addition, suggested protocols are evaluated against contemporaries' benchmark routing protocols. The outcomes of the simulations clearly demonstrate that the suggested routing protocols obtained greater PDR than the current techniques. Additionally, there exists a reduction in the ratio of void hole incidence. Comparative research reveals that suggested routing protocols outperformed benchmark routing protocols by 80–81% in PDR. Further, the suggested routing procedures reduced the frequency of void holes by around 30%. 相似文献
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《Microelectronics Reliability》2014,54(9-10):1692-1696
In this paper the void formation during electromigration is characterized with the single standard via (SSV) and the innovative local sense structure (LSS). LSS allows the measurement of small resistance change before the final void formation. This has allowed to define a time nucleation for the void. The SSV has been used to study: side effect in the first phase (i.e. the “plateau”), the time to failure (TTF) and the void growth. The comprehension of all these phenomena will be fundamental for the future of interconnects reliability physics and lifetime prediction. 相似文献
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文章以理论分析为基础,对孔阵列中孔数量、孔线间距、孔径大小、孔线排布的走向等因素在碱性蚀刻中对线宽的影响进行了初步分析,确定了孔阵列中对线宽影响的主要因素,为解决孔间线细问题提供了一定价值的参考。 相似文献