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Proceedings Paper

New technologies for large-scale micropatterning of functional nanocomposite polymers
Author(s): A. Khosla; B. L. Gray
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Paper Abstract

We present a review of different micropatterning technologies for flexible elastomeric functional nanocomposites with a particular emphasis on mold material and processes for production of large size substrates. The functional polymers include electrically conducting and magnetic materials developed at the Micro-instrumentation Laboratory at Simon Fraser University, Canada. We present a chart that compares many of these different conductive and magnetic functional nanocomposites and their measured characteristics. Furthermore, we have previously reported hybrid processes for nanocomposite polymers micromolded against SU-8 photoepoxy masters. However, SU-8 is typically limited to substrate sizes that are compatible with microelectronics processing as a microelectronics uv-patterning step is typically involved, and de-molding problems are observed. Recently, we have developed new processes that address the problems faced with SU-8 molds. These new technologies for micropatterning nanocomposites involve new substrate materials. A low cost Poly(methyl methacrylate) (PMMA) microfabrication technology has been developed, which involves fabrication of micromold via either CO2 laser ablation or deep UV. We have previously reported this large-scale patterning technique using laser ablation. Finally, we compare the two processes for PMMA producing micromolds for nanocomposites.

Paper Details

Date Published: 30 March 2012
PDF: 10 pages
Proc. SPIE 8344, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012, 83440W (30 March 2012); doi: 10.1117/12.915178
Show Author Affiliations
A. Khosla, Simon Fraser Univ. (Canada)
B. L. Gray, Simon Fraser Univ. (Canada)

Published in SPIE Proceedings Vol. 8344:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012
Vijay K. Varadan, Editor(s)

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