A stretchable knitted interconnect for three-dimensional curvilinear surfaces

Qiao Li, Xiaoming Tao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)

Abstract

This paper describes a novel method for fabricating stretchable electric interconnects on deformable curvilinear bodies. An interlaced interconnect integrated with a metal conductor and an elastic substrate has been proposed by using a super fine insulated metal conductor wire co-knitted into an elastic knitted fabric. Its electro-mechanical property was investigated by using a material tester with ball-punch attachment. The electrical conductivity of the elastic interconnect remains constant up to an average in-plan strain of 100%. The interlaced interconnect is able to survive in repeated three-dimensional deformation cycles where the membrane deformation of the substrate is the dominating mode of deformation. The number of cycles before failure can reach over 5000 at an average in-plane strain of 46%. The fatigue phenomenon is clearly related to the wire diameter and mechanical abrasion due to high levels of compression and friction between the metal wire and the ball.
Original languageEnglish
Pages (from-to)1171-1182
Number of pages12
JournalTextile Research Journal
Volume81
Issue number11
DOIs
Publication statusPublished - 1 Jan 2011

Keywords

  • Curvilinear
  • durability
  • knitted interconnect
  • stretchable electronics

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

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