Emerald Login
   

Welcome guest

Article Request:
Design and performance of metal conductors for stretchable electronic circuits

Article Information:

Title:

Design and performance of metal conductors for stretchable electronic circuits

Author(s):

Mario Gonzalez, Fabrice Axisa, Frederick Bossuyt, Yung-Yu Hsu, Bart Vandevelde, Jan Vanfleteren

Journal:

Circuit World

Year:

2009

Volume:

35

Issue:

1

Page:

22 - 29


ISSN:

0305-6120


DOI:

10.1108/03056120910928699

Publisher:

Emerald Group Publishing Limited


Acknowledgements:

The authors would like to thank the European Commission for the financial support of the Project STELLA, contract No. IST-028026 and the Flemish Community for the financial support of the Project BIOFLEX, contract No. SBO-040101. Special thanks to Philips Apptech for the mechanical properties measurements. © Mario Gonzalez et al., 2008.

Document Access:

Existing customers:

Please login above.

Purchase this document:
Price payable: GBP £13.00
plus handling charge of GBP £1.50 and VAT where applicable.
Purchase

Request this document:
Print or e-mail a document request to your librarian.
Request

Abstract:

Purpose – The purpose of this paper is to present an update on the progress of the design and reliability of stretchable interconnections for electronic circuits.

Design/methodology/approach – Finite element modelling (FEM) is used to analyse the physical behaviour of stretchable interconnects under different loading conditions. The fatigue life of a copper interconnect embedded into a silicone matrix has been evaluated using the Coffin-Manson relation and FEM.

Findings – The mechanical properties of the substrate and the design of the metal interconnection play an important role on the fatigue lifetime of circuit. In the case of copper embedded into a PDMS Sylgard 186, more than 2,500 tensile cycles have been observed for a periodic deformation of 10 per cent.

Research limitations/implications – Reliability results are limited and need further work to create a more accurate empirical model to estimate the lifetime of stretchable interconnections.

Originality/value – The combined use of FEM and experimental analysis enable a more reliable design of the stretchable metal interconnections. The proposed horseshoe design offers the benefit of reduced permanent damage during elongation.

Keywords:

Circuits and circuit theory, Elasticity, Electrical conductivity, Finite element analysis, Polyurethane


Article Type:

Research paper


Article URL:

http://www.emeraldinsight.com/10.1108/03056120910928699

Top