Note: A single-chamber tool for plasma activation and surface functionalization in microfabrication
Abstract
We present a simple apparatus for improved surface modification of polydimethylsiloxane (PDMS) microfluidic devices. A single treatment chamber for plasma activation and chemical/physical vapor deposition steps minimizes the time-dependent degradation of surface activation that is inherent in multi-chamber techniques. Contamination and deposition irregularities are also minimized by conducting plasma activation and treatment phases in the same vacuum environment. An inductively coupled plasma driver allows for interchangeable treatment chambers. Atomic force microscopy confirms that silane deposition on PDMS gives much better surface quality than standard deposition methods, which yield a higher local roughness and pronounced irregularities in the surface.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 01, 2015
- Source ID
- 10.1063/1.4922827
Entities
People
- Adam J. Bowman
- Joseph R. Scherrer
- Ronald S. Reiserer
Organizations
- Defense Advanced Research Projects Agency
- Defense Threat Reduction Agency
- National Institutes of Health
- Vanderbilt University