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首页> 外文会议>2014 Joint IEEE International Symposium on the Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices amp; Workshop on Piezoresponse Force Microscopy >Optimistic design of freestanding horseshoe metal interconnects for stretchable electronic circuits
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Optimistic design of freestanding horseshoe metal interconnects for stretchable electronic circuits

机译：用于可伸缩电子电路的独立式马蹄形金属互连的优化设计

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摘要

This work investigates structure analysis and design of metal interconnects for stretchable electronic circuits using the finite element software ABAQUS. In order to design a more promising structure of metal interconnect, the performance of different parameters (the inner radius, the angle and the width of the copper trace) of horseshoe shape is compared under the condition of uniaxial tensile. In the process of finite element simulation, the metal is modeled as elastic-plastic solids. It can be concluded that the most dominating factor for the maximum equivalent plastic strain is the inner radius of horseshoe shape. The maximum plastic strain values decreases as the radius increases. The change tendency of the effect of angles of horseshoe shape is the same as the effect of radius. However, the maximum plastic strain values increase as the widths increase. Building on the results which based on simulated and compared different configurations, an optimistic horseshoe shape with an appropriate inner radius, angle and width is suggested. This design allows a larger deformation with the minimum stress concentration on the top of the arc. However, the stresses and strains is based on substrate stiffness in stretchable electronic. The performance of optimal configurations for the copper line on substrate will need to have a further investigation.
机译：这项工作使用有限元软件ABAQUS研究可伸缩电子电路的金属互连的结构分析和设计。为了设计一种更有前景的金属互连结构，比较了在单轴拉伸条件下马蹄形的不同参数（内径，铜迹线的角度和宽度）的性能。在有限元模拟过程中，将金属建模为弹塑性固体。可以得出结论，最大等效塑性应变的最主要因素是马蹄形的内半径。最大塑性应变值随着半径的增加而减小。马蹄形角度的影响的变化趋势与半径的影响相同。但是，最大塑性应变值随宽度增加而增加。在模拟和比较不同配置的结果的基础上，提出了一种具有适当内半径，角度和宽度的乐观马蹄形状。这种设计允许更大的变形，同时将最小应力集中在电弧顶部。但是，应力和应变是基于可拉伸电子设备中的基板刚度。基板上铜线的最佳配置性能需要进一步研究。

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