Bulk acoustic wave filter structure with conductive bridge forming electrical loop with an electrode
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United States of America
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Mar 18, 2025
Grant Date -
Mar 9, 2023
app pub date -
Nov 10, 2022
filing date -
Nov 10, 2022
priority date (Note) -
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Abstract
Disclosed is a Bulk Acoustic Wave (BAW) filter structure with a conductive bridge forming an electrical loop with an electrode for reduced electrical losses. In exemplary aspects disclosed herein, the BAW filter structure includes a transducer with electrodes, a piezoelectric layer between the electrodes, and at least one conductive bridge offset from at least a portion of one of the electrodes by an insulating volume. The conductive bridge forms a first electrical loop between a medial end and a distal end of the electrode. Such a configuration reduces electrical resistance, heat resistance, and/or ohmic losses for improved electrical loss of the BAW filter structure.
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