Acoustic transducer and method of manufacturing
AssigneeDarkVision Technologies Inc.
InventorsJay Hope, Graham Manders, Connor Vandenberg, Jacob William Rose
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Abstract
An acoustic transducer array and method of making same. A first metal layer is deposited on a first side of a piezoelectric composite to form a common electrode and a second metal layer is provided over the obverse side. Portions of the second metal layer are removed to create a plurality of individual electrodes. A third metal layer may be deposited onto the plurality of individual electrodes, the third metal layer being thicker than the second metal layer. The individual electrodes extend beyond the piezoelectric composite in the elevation direction to create electrode leads. Metal layers may be provided by lithography, a wireframe or a foil sheet.
Claims10
An acoustic transducer array comprising:
- a piezoelectric composite;
- a first metal layer on a first side of the piezoelectric composite defining a common electrode;
- a second metal layer on a second side of piezoelectric composite, opposite the first side;
- and
- a third metal layer conductively connected to and substantially covering the second metal layer and extending beyond the piezoelectric composite in an elevation direction of the transducer,
- wherein the third metal layer is thicker than the second metal layer and
- wherein the second and third layers are formed to define a plurality of individual electrodes.
An acoustic transducer array comprising:
- a piezoelectric composite;
- a first metal layer on a first side of the piezoelectric composite defining a common electrode;
- a second metal layer on a second side of the piezoelectric composite, opposite the first side, wherein the second metal layer, on a per element basis, extends beyond the piezoelectric composite in an elevation direction of the transducer and is formed to define a plurality of individual electrodes,
- wherein the common electrode is common among the plurality of individual electrodes.
Dependencies are inferred from the claim text.