Design and analysis of a novel fine pitch and highly stretchable interconnect
Purpose - The purpose of this paper is to demonstrate electromechanical properties of a new stretchable interconnect design for "fine pitch" applications in stretchable electronics.Design methodology approach - A patterned metal interconnect with a zigzag shape is adhered on an elastomeric...
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Published in | Microelectronics international Vol. 27; no. 1; pp. 33 - 38 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Bradford
Emerald Group Publishing Limited
01.01.2010
MCB University Press |
Subjects | |
Online Access | Get full text |
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Summary: | Purpose - The purpose of this paper is to demonstrate electromechanical properties of a new stretchable interconnect design for "fine pitch" applications in stretchable electronics.Design methodology approach - A patterned metal interconnect with a zigzag shape is adhered on an elastomeric substrate. In situ home-built electromechanical measurement is carried out by the four-probe technique. Finite element method is used to analyze the deformation behavior of a zigzag shape interconnect under uniaxial tensile loading.Findings - The electrical resistance remains constant until metal breakdown at elongations beyond 40 percent. There is no significant local necking in either the transverse or the thickness direction at the metal breakdown area as shown by both scanning electron microscopy micrographs and resistance measurements. Micrographs and simulation results show that a debonding occurs due to the local twisting of a metal interconnect, out-of-plane peeling, and strain localized at the crest of a zigzag structure.Originality value - In this paper, the zigzag shape is, for the first time, proven as a promising design for stretchable interconnects, especially for fine pitch applications. |
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Bibliography: | istex:5B661FA9F5DD1E99CF9B0A580B8BCB6B4A572FC9 href:13565361011009504.pdf original-pdf:2180270106.pdf filenameID:2180270106 ark:/67375/4W2-ZJC9XSSL-Z ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1356-5362 1758-812X |
DOI: | 10.1108/13565361011009504 |