TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH BURIED OXIDE STRIP ACOUSTIC CONFINEMENT STRUCTURES

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20250096769A1
SERIAL NO

18966231

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A filter device is provided that includes a plurality of bulk acoustic resonators that each includes a piezoelectric layer; a conductor pattern on the piezoelectric layer and including an interdigital transducer (IDT) having a first plurality of fingers extending from a first busbar and a second plurality of fingers extending from the second busbar, such that the first plurality of fingers and the second plurality of fingers are interleaved with each other; a dielectric strip that overlaps a margin of the first plurality of fingers and that extends into a gap between ends of the first plurality of fingers and the second busbar. Moreover, a thickness ts of the dielectric strip a first bulk acoustic resonator of the plurality of bulk acoustic resonators is different than a thickness ts of the dielectric strip of a second bulk acoustic resonator of the plurality of bulk acoustic resonators.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CONAGAOKAKYO-SHI 26-10 TENJIN 2-CHOME KYOTO-FU 617-8555

International Classification(s)

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  • 2024 Application Filing Year
  • H03H Class
  • 599 Applications Filed
  • 21 Patents Issued To-Date
  • 3.51 % Issued To-Date

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
CARDONA, Albert Santa Barbara, US 24 14
KAY, Andrew Provo, US 81 835
KOULAKIS, John Los Angeles, US 13 11
MCHUGH, Sean Santa Barbara, US 47 176

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3330020406080100120140160180200220240260280300320340360

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