SURFACE ACOUSTIC WAVE DEVICE
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United States of America Patent
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Issued Date -
Oct 10, 2024
app pub date -
Jun 20, 2024
filing date -
Nov 19, 2019
priority date (Note) -
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Abstract
Aspects of this disclosure relate to a surface acoustic wave device. The surface acoustic wave device includes a piezoelectric layer and an interdigital transducer. The interdigital transducer electrode includes a pair of electrodes, each electrode having a bus bar and fingers extending from the bus bar. The interdigital transducer electrode has an interdigital region defined by a portion of the fingers of the electrodes that interdigitate with each other. A dielectric layer is disposed over the interdigital transducer electrode outside the interdigital region and configured to reduce a loss of the surface acoustic wave device.
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