| US 9,812,634 B2 | ||
| Method of making thick film transducer arrays | ||
| Peter G. Barthe, Phoenix, AZ (US) | ||
| Assigned to Ardent Sounds, Inc., Mesa, AZ (US) | ||
| Filed by Ardent Sound, Inc., Mesa, AZ (US) | ||
| Filed on Jan. 8, 2016, as Appl. No. 14/990,993. | ||
| Application 14/990,993 is a continuation of application No. 13/863,362, filed on Apr. 15, 2013, granted, now 9,263,663. | ||
| Claims priority of provisional application 61/623,571, filed on Apr. 13, 2012. | ||
| Prior Publication US 2016/0126451 A1, May 5, 2016 | ||
| Int. Cl. H01L 41/29 (2013.01); H01L 41/22 (2013.01); B06B 1/06 (2006.01) | ||
| CPC H01L 41/22 (2013.01) [B06B 1/0622 (2013.01); H01L 41/29 (2013.01); Y10T 29/42 (2015.01)] | 14 Claims |
| 1. A method of fabricating a transducer array, the method comprising:
a) printing a first electrode onto a lens shaped depression of a face of a block of backing material and over a first edge
along a length of the depression;
b) printing a layer of lead zirconate titanate (PZT) material into the depression and on the first electrode;
c) printing a second electrode into the depression and on the layer of PZT and over a second edge along the length of the
depression, wherein the first edge and the second edge are different, wherein a first length of the first electrode over the
first edge is different than a second length of the second electrode over the second edge; and
d) placing a plurality of cuts into the depression and perpendicular to the length, wherein the plurality of cuts electrically
and mechanically isolate each element of the transducer array.
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