ACOUSTIC WAVE DEVICE WITH LAYER STRUCTURES, DEVICES AND SYSTEMS
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Nov 4, 2024
filing date -
Nov 4, 2024
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Abstract
Techniques for improving acoustic wave device structures are disclosed, including at least filters and systems that may include such devices. An acoustic wave device may include at least a substrate. The acoustic wave device may include at least a first piezoelectric layer and a second piezoelectric layer and a third piezoelectric layer. The second piezoelectric layer may have a second piezoelectric axis orientation. The third piezoelectric layer may have a third piezoelectric axis orientation that substantially opposes the second piezoelectric axis orientation of the second piezoelectric layer. The acoustic wave device may include an interposer layer coupled between the second piezoelectric layer and the third piezoelectric layer.
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