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Fabrication Approaches to Interconnect Based Devices for Stretchable Electronics: A Review.
Materials (Basel) 2018; 11(3)M

Abstract

Stretchable electronics promise to naturalize the way that we are surrounded by and interact with our devices. Sensors that can stretch and bend furthermore have become increasingly relevant as the technology behind them matures rapidly from lab-based workflows to industrially applicable production principles. Regardless of the specific materials used, creating stretchable conductors involves either the implementation of strain reliefs through insightful geometric patterning, the dispersion of stiff conductive filler in an elastomeric matrix, or the employment of intrinsically stretchable conductive materials. These basic principles however have spawned a myriad of materials systems wherein future application engineers need to find their way. This paper reports a literature study on the spectrum of different approaches towards stretchable electronics, discusses standardization of characteristic tests together with their reports and estimates matureness for industry. Patterned copper foils that are embedded in elastomeric sheets, which are closest to conventional electronic circuits processing, make up one end of the spectrum. Furthest from industry are the more recent circuits based on intrinsically stretchable liquid metals. These show extremely promising results, however, as a technology, liquid metal is not mature enough to be adapted. Printing makes up the transition between both ends, and is also well established on an industrial level, but traditionally not linked to creating electronics. Even though a certain level of maturity was found amongst the approaches that are reviewed herein, industrial adaptation for consumer electronics remains unpredictable without a designated break-through commercial application.

Authors+Show Affiliations

Institute for Materials Research, Hasselt University, Wetenschapspark 1, B-3590 Diepenbeek, Belgium. steven.nagels@uhasselt.be. IMEC VZW-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium. steven.nagels@uhasselt.be.Institute for Materials Research, Hasselt University, Wetenschapspark 1, B-3590 Diepenbeek, Belgium. wim.deferme@uhasselt.be. IMEC VZW-Division IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium. wim.deferme@uhasselt.be.

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

29510497

Citation

Nagels, Steven, and Wim Deferme. "Fabrication Approaches to Interconnect Based Devices for Stretchable Electronics: a Review." Materials (Basel, Switzerland), vol. 11, no. 3, 2018.
Nagels S, Deferme W. Fabrication Approaches to Interconnect Based Devices for Stretchable Electronics: A Review. Materials (Basel). 2018;11(3).
Nagels, S., & Deferme, W. (2018). Fabrication Approaches to Interconnect Based Devices for Stretchable Electronics: A Review. Materials (Basel, Switzerland), 11(3), doi:10.3390/ma11030375.
Nagels S, Deferme W. Fabrication Approaches to Interconnect Based Devices for Stretchable Electronics: a Review. Materials (Basel). 2018 Mar 3;11(3) PubMed PMID: 29510497.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fabrication Approaches to Interconnect Based Devices for Stretchable Electronics: A Review. AU - Nagels,Steven, AU - Deferme,Wim, Y1 - 2018/03/03/ PY - 2018/02/06/received PY - 2018/02/27/revised PY - 2018/03/01/accepted PY - 2018/3/8/entrez PY - 2018/3/8/pubmed PY - 2018/3/8/medline KW - conductive composite KW - horseshoe KW - liquid metal KW - soft electronics KW - soft robotics KW - standard test KW - stretchable electronics JF - Materials (Basel, Switzerland) JO - Materials (Basel) VL - 11 IS - 3 N2 - Stretchable electronics promise to naturalize the way that we are surrounded by and interact with our devices. Sensors that can stretch and bend furthermore have become increasingly relevant as the technology behind them matures rapidly from lab-based workflows to industrially applicable production principles. Regardless of the specific materials used, creating stretchable conductors involves either the implementation of strain reliefs through insightful geometric patterning, the dispersion of stiff conductive filler in an elastomeric matrix, or the employment of intrinsically stretchable conductive materials. These basic principles however have spawned a myriad of materials systems wherein future application engineers need to find their way. This paper reports a literature study on the spectrum of different approaches towards stretchable electronics, discusses standardization of characteristic tests together with their reports and estimates matureness for industry. Patterned copper foils that are embedded in elastomeric sheets, which are closest to conventional electronic circuits processing, make up one end of the spectrum. Furthest from industry are the more recent circuits based on intrinsically stretchable liquid metals. These show extremely promising results, however, as a technology, liquid metal is not mature enough to be adapted. Printing makes up the transition between both ends, and is also well established on an industrial level, but traditionally not linked to creating electronics. Even though a certain level of maturity was found amongst the approaches that are reviewed herein, industrial adaptation for consumer electronics remains unpredictable without a designated break-through commercial application. SN - 1996-1944 UR - https://www.unboundmedicine.com/medline/citation/29510497/Fabrication_Approaches_to_Interconnect_Based_Devices_for_Stretchable_Electronics:_A_Review_ L2 - http://www.mdpi.com/resolver?pii=ma11030375 DB - PRIME DP - Unbound Medicine ER -