Acoustic transducer and method of manufacturing
AssigneeDarkVision Technologies Inc.
InventorsJay Hope, Graham Manders, Connor Vandenberg, Jacob William Rose
Life of this patent
Estimating the term…
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.
Claims12
A method of manufacturing an array of acoustic transducers comprising:
- depositing a first metal layer on a first side of a piezoelectric composite to form a common electrode;
- depositing a second metal layer on a second side of the piezoelectric composite, opposite the first side;
- covering the second metal layer with a third metal layer, wherein the third metal layer is thicker than the second metal layer and comprises an extending portion that extends beyond the piezoelectric composite in an elevation direction of the transducers;
- and
- selectively removing portions of the metal layers on the second side to define a plurality of individual electrodes, each having an electric lead in the extending portion.
A method of manufacturing an array of acoustic transducers comprising:
- depositing a first metal layer on a first side of a piezoelectric composite to form a common electrode;
- depositing a second metal layer on a second side of the piezoelectric composite, opposite the first side and comprises an extending portion that extends beyond the piezoelectric composite in an elevation direction of the transducers;
- and
- selectively removing portions of the second metal layer to define a plurality of individual electrodes each having an electric lead in the extending portion.
Dependencies are inferred from the claim text.