CPC B06B 1/0622 (2013.01) [B06B 1/0215 (2013.01); H10N 30/1071 (2023.02); H10N 30/87 (2023.02); H10N 30/88 (2023.02)] | 17 Claims |
1. A transducer, comprising:
a first piezoelectric stack comprising a piezoelectric material;
a first layer in contact with the piezoelectric stack; and
a base structure beneath the first layer, wherein the transducer is configured to have:
a gap between the first layer and a first portion of the base structure in an absence of a first bias voltage; and
contact between the first layer and the first portion of base structure responsive to the first bias voltage.
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