可延展电子金属导线通用互连结构延展性表征研究  

Research on characterization of stretchability for metal universal interconnect structure in stretchable eletronics

作　　者：左锋[1] 潘开林[1] 秦晴[1] 杨帆[1] 蒋廷彪[1] 

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林541004

出　　处：《机电工程》2016年第7期888-894,共7页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金面上项目(61474032)

摘　　要：针对当前可延展电子互连结构性能分析复杂、结构设计不确定性等问题,将国内外常用的互连结构图形进行了总结分析,提出了一种通用互连结构图形,通过改变该图形的结构参数可以变成常用的一些互连结构,在此基础上基于梁结构理论针对提出的图形结构,采用能量法推导计算自由状态下通用互连结构的拉伸位移公式和弯曲位移公式,同时根据胡克定理结合推导的位移公式推导出了相应的拉伸刚度和弯曲刚度。为了验证该通用互连结构拉伸刚度和弯曲刚度的正确性及通用性,建立了有限元数值仿真模型进行验证。验证结果表明:该通用互连结构图形的刚度公式是正确性且具备通用性,金属导线通用互连结构的延展性起到一定的表征作用,为可延展电子金属互连导线的结构设计提供一定参考价值。Aimed at a series of problems of interconnect structure such as complexity of performance analysis and uncertainty of structure design in stretchable eletronics,a universial interconnect structure,through which common interconnect structures can be formed by changing its geometric parameters was proposed by the means of summary and analysis of the common structures. Based on the beam structure theory and aimed at the proposed structures,tensile displacement and bending displacement formula were derived by energy method in free condition. Furthermore,their corresponding tensile stiffness and bending stiffness were calculated according to Hooke＇s law and combining the displacement formula above. The finite element numerical simulations model were built to verify the validity and generality of the stiffness formula. Finally the validation results indicate that the tensile stiffness and bending stiffness formula of universal interconnect structure is correct and characterization of stretchability for universal interconnect structure is proved. This research provide a meaningful design guide for interconnect structure design.

关 键 词：可延展电子 金属导线 通用互连结构 拉伸刚度 弯曲刚度 

分 类 号：TM241[一般工业技术—材料科学与工程] TN304.9[电气工程—电工理论与新技术]