High-density soft-matter electronics with micron-scale line width

B Arda Gozen; Arya Tabatabai; O Burak Ozdoganlar; Carmel Majidi

doi:10.1002/adma.201400502

High-density soft-matter electronics with micron-scale line width

Adv Mater. 2014 Aug 13;26(30):5211-6. doi: 10.1002/adma.201400502. Epub 2014 Jun 5.

Authors

B Arda Gozen¹, Arya Tabatabai, O Burak Ozdoganlar, Carmel Majidi

Affiliation

¹ Carnegie Mellon University, Mechanical Engineering Department, 5000 Forbes Avenue, Scaife Hall, Pittsburgh, PA, 15213, USA.

PMID: 24899382
DOI: 10.1002/adma.201400502

Abstract

A method to produce soft and stretchable microelectronics composed of a liquid-phase Gallium-Indium alloy with micron-scale circuit features is introduced. Microchannels are molded onto the surface of a poly(dimethylsiloxane) (PDMS) elastomer and filled with EGaIn using a micro-transfer deposition step that exploits the unique wetting properties of EGaIn in air. The liquid-filled channels function as stretchable circuit wires or capacitor electrodes with a 2 μm linewidth and 1 μm spacing.

Keywords: eutectic gallium indium; liquid phase micro-electronics; micro-transfer printing; soft electronics; stretchable electronics.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.