Mechanical Designs for Inorganic Stretchable Circuits in Soft Electronics

Shuodao Wang*, Yonggang Huang, John A. Rogers

*Corresponding author for this work

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

Mechanical concepts and designs in inorganic circuits for different levels of stretchability are reviewed in this paper, through discussions of the underlying mechanics and material theories, fabrication procedures for the constituent microscale/nanoscale devices, and experimental characterization. All of the designs reported here adopt heterogeneous structures of rigid and brittle inorganic materials on soft and elastic elastomeric substrates, with mechanical design layouts that isolate large deformations to the elastomer, thereby avoiding potentially destructive plastic strains in the brittle materials. The overall stiffnesses of the electronics, their stretchability, and curvilinear shapes can be designed to match the mechanical properties of biological tissues. The result is a class of soft stretchable electronic systems that are compatible with traditional high-performance inorganic semiconductor technologies. These systems afford promising options for applications in portable biomedical and health-monitoring devices. Mechanics theories and modeling play a key role in understanding the underlining physics and optimization of these systems.

Original languageEnglish (US)
Article number7103309
Pages (from-to)1201-1218
Number of pages18
JournalIEEE Transactions on Components, Packaging and Manufacturing Technology
Volume5
Issue number9
DOIs
StatePublished - Sep 1 2015

Keywords

  • Biomimicking electronics
  • buckling
  • inorganic semiconductor
  • stretchable electronics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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