Mechanical stop mechanism for overcoming MEMS fabrication tolerances

A mechanical stop mechanism is developed in order to compensate MEMS fabrication tolerances in discrete positioning. The mechanical stop mechanism is designed to be implemented on SOI wafers using a common DRIE etching process. The various fabrication tolerances obtained due to the etching process a...

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Veröffentlicht in:Journal of micromechanics and microengineering 2017-01, Vol.27 (1), p.17001
Hauptverfasser: Hussein, Hussein, Bourbon, Gilles, Le Moal, Patrice, Haddab, Yassine, Lutz, Philippe
Format: Artikel
Sprache:eng
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Zusammenfassung:A mechanical stop mechanism is developed in order to compensate MEMS fabrication tolerances in discrete positioning. The mechanical stop mechanism is designed to be implemented on SOI wafers using a common DRIE etching process. The various fabrication tolerances obtained due to the etching process are presented and discussed in the paper. The principle and design of the mechanism are then presented. Finally, experiments on microfabricated positioning prototypes show accurate steps unaffected by the fabrication tolerances.
ISSN:0960-1317
1361-6439
DOI:10.1088/0960-1317/27/1/017001