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Sensors 2014, 14(7), 11855-11877; doi:10.3390/s140711855

Design, Fabrication and Failure Analysis of Stretchable Electrical Routings

Department of Power Mechanical Engineering, National Tsinghua University, No.101, Section 2 Kuang Fu Road, Hsinchu 30013, Taiwan
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Received: 2 March 2014 / Revised: 21 April 2014 / Accepted: 30 April 2014 / Published: 4 July 2014
(This article belongs to the Special Issue Modeling, Testing and Reliability Issues in MEMS Engineering 2013)
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Abstract

Stretchable microelectromechanical systems (MEMS) possess higher mechanical deformability and adaptability than devices based on conventional solid and flexible substrates, hence they are particularly desirable for biomedical, optoelectronic, textile and other innovative applications. The stretchability performance can be evaluated by the failure strain of the embedded routing and the strain applied to the elastomeric substrate. The routings are divided into five forms according to their geometry: straight; wavy; wrinkly; island-bridge; and conductive-elastomeric. These designs are reviewed and their resistance-to-failure performance is investigated. The failure modeling, numerical analysis, and fabrication of routings are presented. The current review concludes with the essential factors of the stretchable electrical routing for achieving high performance, including routing angle, width and thickness. The future challenges of device integration and reliability assessment of the stretchable routings are addressed.
Keywords: microelectromechanical systems (MEMS); stretchable; routing; strain; failure microelectromechanical systems (MEMS); stretchable; routing; strain; failure
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Hocheng, H.; Chen, C.-M. Design, Fabrication and Failure Analysis of Stretchable Electrical Routings. Sensors 2014, 14, 11855-11877.

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