Abstract
The present invention provides a MEMS piezoelectric switch that has an articulated unimorph bridge attached to a substrate. The bridge includes a passive layer of zirconia and at least one silicon-based material, an active layer of a piezoelectric material that has a high piezoelectric coefficient, at least one pair of interdigitated electrodes, disposed on the top surface of the active layer and across which the bias voltage is applied, and a top contact electrode. A bottom contact electrode is provided on the substrate, and signals flow through the switch when the top and bottom contact electrodes contact one another.
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