Rapid patterning of slurry-like elastomer composites using a laser-cut tape

Han-Sheng Chuang, Steven T. Wereley

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present a cleanroom-free, simple and low-cost fabrication approach utilizing a laser-cut tape for rapidly patterning slurry-like elastomer composites. A conductive polydimethylsiloxane (PDMS) composite was chosen for demonstration in this paper due to its wide use of sensing and heating in many applications. Two fabrication schemes were developed: embedding in a PDMS matrix and relieving on a PDMS substrate. In both schemes, the patterns were first inscribed on adhesive tape using a CO 2 laser. The patterned tape then served as a positive mask when spreading the conductive PDMS over it. The patterns were eventually transferred to a substrate after scraping the excessive composite with a razor blade and then removing the tape. The feature resolution of the technique was about 90-100 μm primarily determined by the laser beam diameter, the translational speed and the power. The height of the patterned structures was associated with the thickness of the tape, which ranged from 76.1 ± 4.3 μm to 168.9 ± 8.2 μm in this study. A thicker structure can be achieved by stacking more adhesive tapes. For a practical demonstration, the conductive PDMS was patterned on a PDMS substrate serving as a heating element. The elastomeric microheater was successfully heated to 92 °C with a power of 210 ± 12 mW applied.

Original languageEnglish
Article number097001
JournalJournal of Micromechanics and Microengineering
Volume19
Issue number9
DOIs
Publication statusPublished - 2009 Nov 9

Fingerprint

Elastomers
Polydimethylsiloxane
Tapes
Lasers
Composite materials
Adhesives
Substrates
Demonstrations
Electric heating elements
Fabrication
Carbon Monoxide
Laser beams
baysilon
Masks
Heating
Costs

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

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Rapid patterning of slurry-like elastomer composites using a laser-cut tape. / Chuang, Han-Sheng; Wereley, Steven T.

In: Journal of Micromechanics and Microengineering, Vol. 19, No. 9, 097001, 09.11.2009.

Research output: Contribution to journalArticle

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