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毛细管下填充流量模拟作为一种设计工具,用于在异质集成中进行流量优化的封装
Lisa Christin Stencel1, Jörg Strogies1, Bernd Müller1
1Siemens AG, T ICE ELM-DE, 13629 Berlin, Germany.
Micromachines
|October 28, 2023
概括
本研究介绍了精确的毛细管双相流量模拟,用于在功率电子设备中无缺陷的下填充. 预测工程优化包装设计,以提高可靠性和制造产量.
科学领域:
- 材料科学 材料科学 材料科学
- 计算流体动力学的流体动力学.
- 动力电子 包装 电力电子 包装
背景情况:
- 毛细血管不足填充对于先进的功率电子集成至关重要.
- 实现无缺陷封装对于设备可靠性至关重要.
研究的目的:
- 开发和验证精确的毛细管双相流量模拟用于填充不足.
- 调查影响流量精度的因素,并探索流量操纵策略.
主要方法:
- 流体体积 (VOF) 方法用于双相流体模拟,优化了HRIC混合,人工粘度和隐性多步骤.
- 数字地图集成物理实验和虚拟模拟.
- 探索流量操纵技术:局部速度调整,间隙细分和弧形形状.
主要成果:
- VOF方法的准确性和效率高于水平设置方法.
- 过渡性流量预测与实验数据 (1.48-3.34%的偏差) 有着很好的一致性.
- 非牛顿粘度和时间依赖的接触角度显著影响预测的准确性.
结论:
- 使用经过验证的流量模拟的预测工程可以优化填充不足的过程.
- 流量操纵策略有效控制接口汇合,并改善封装.
- 优化的设计提高了动力电子的可靠性和制造产量.
相关概念视频
Typical Model Studies
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
Pipe Flowrate Measurement
In pipe flow measurement, orifice, nozzle, and Venturi meters are commonly used to determine fluid flowrates by constricting the flow area, which increases fluid velocity and reduces pressure. This pressure difference, governed by Bernoulli's principle and adjusted for real-world conditions, is essential for calculating flowrate. Each meter type is suited to specific applications based on accuracy, efficiency, and compatibility with various flow conditions.
The orifice meter is a simple,...
The orifice meter is a simple,...

