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J. Vac. Sci. Technol. B 15, 1 (1997); http://dx.doi.org/10.1116/1.589247 (20 pages)
Critical Review: Adhesion in surface micromechanical structures
We present a review on the state of knowledge of surface phenomena behind adhesion in surface micromechanical structures. After introducing the problem of release-related and in-use adhesion, a theoretical framework for understanding the various surface forces that cause strong adhesion of micromechanical structures is presented. Various approaches are described for reducing the work of adhesion. These include surface roughening and chemical modification of polycrystalline silicon surfaces. The constraints that fabrication processes such as release, drying, assembly, and packaging place on surface treatments are described in general. Finally, we briefly outline some of the important scientific and technological issues in adhesion and friction phenomena in micromechanical structures that remain to be clarified. © 1997 American Vacuum Society.
© 1997 American Vacuum Society
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Received 15 November 1996
Accepted 15 November 1996
Accepted 15 November 1996
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