Plastic masters-rigid templates for soft lithography

We demonstrate a simple process for the fabrication of rigid plastic master molds for soft lithography directly from (poly)dimethysiloxane devices. Plastics masters (PMs) provide a cost-effective alternative to silicon-based masters and can be easily replicated without the need for cleanroom facilit...

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Bibliographic Details
Published in:Lab on a chip 2009-01, Vol.9 (11), p.1631-1637
Main Authors: Desai, Salil P, Freeman, Dennis M, Voldman, Joel
Format: Article
Language:English
Subjects:
Dimethylpolysiloxanes - chemistry
Equipment Design
Microfluidic Analytical Techniques - instrumentation
Microtechnology - methods
Plastics - chemistry
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Summary:We demonstrate a simple process for the fabrication of rigid plastic master molds for soft lithography directly from (poly)dimethysiloxane devices. Plastics masters (PMs) provide a cost-effective alternative to silicon-based masters and can be easily replicated without the need for cleanroom facilities. We have successfully demonstrated the use of plastics micromolding to generate both single and dual-layer plastic structures, and have characterized the fidelity of the molding process. Using the PM fabrication technique, world-to-chip connections can be integrated directly into the master enabling devices with robust, well-aligned fluidic ports directly after molding. PMs provide an easy technique for the fabrication of microfluidic devices and a simple route for the scaling-up of fabrication of robust masters for soft lithography.
ISSN:1473-0197
1473-0189
DOI:10.1039/b822081f