Inorganic stretchable electronics based on the island-bridge layout have attracted great attention in recent years due to their excellent electrical performance under the extreme condition of large deformations. During the mechanics design of interconnects in such devices, the major task is not only to maximize the elastic stretchability of device but also to smoothen the whole deformation process of interconnects. In this work, a novel design strategy is proposed for free-standing fractal serpentine interconnects to improve their elastic performance comprehensively without reducing the areal coverage of functional/active components of device. By modifying the classical design slightly, the new strategy can achieve a larger elastic stretchability, a smaller maximum out-of-plane displacement, and most strikingly, a smoother post-buckling deformation. This study will provide helpful guidance to the mechanics design of stretchable electronics with free-standing interconnects.
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March 2019
Research-Article
Mechanics Design for Compatible Deformation of Fractal Serpentine Interconnects in High-Density Stretchable Electronics
Yin Huang,
Yin Huang
School of Materials Science and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Search for other works by this author on:
Zhuangzhuang Mu,
Zhuangzhuang Mu
Applied Mechanics and Structure Safety Key
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
School of Mechanics and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Search for other works by this author on:
Peng Feng,
Peng Feng
Applied Mechanics and Structure Safety Key
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
School of Mechanics and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Search for other works by this author on:
Jianghong Yuan
Jianghong Yuan
Applied Mechanics and Structure Safety Key
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
School of Mechanics and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
e-mail: jianghong_yuan@swjtu.edu.cn
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
e-mail: jianghong_yuan@swjtu.edu.cn
Search for other works by this author on:
Yin Huang
School of Materials Science and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Zhuangzhuang Mu
Applied Mechanics and Structure Safety Key
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
School of Mechanics and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Peng Feng
Applied Mechanics and Structure Safety Key
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
School of Mechanics and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
Jianghong Yuan
Applied Mechanics and Structure Safety Key
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
Laboratory of Sichuan Province,
Chengdu, Sichuan 610031, China;
School of Mechanics and Engineering,
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
e-mail: jianghong_yuan@swjtu.edu.cn
Southwest Jiaotong University,
Chengdu, Sichuan 610031, China
e-mail: jianghong_yuan@swjtu.edu.cn
1Corresponding author.
Manuscript received November 17, 2018; final manuscript received December 9, 2018; published online January 11, 2019. Editor: Yonggang Huang.
J. Appl. Mech. Mar 2019, 86(3): 031011 (6 pages)
Published Online: January 11, 2019
Article history
Received:
November 17, 2018
Revised:
December 9, 2018
Citation
Huang, Y., Mu, Z., Feng, P., and Yuan, J. (January 11, 2019). "Mechanics Design for Compatible Deformation of Fractal Serpentine Interconnects in High-Density Stretchable Electronics." ASME. J. Appl. Mech. March 2019; 86(3): 031011. https://doi.org/10.1115/1.4042290
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