Elastic wave device

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United States of America Patent

PATENT NO 11936365
APP PUB NO 20230208387A1
SERIAL NO

18115117

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An elastic wave device includes an interdigital transducer electrode, a dielectric film, and a frequency adjustment film are disposed on a LiNbO3 substrate. When Euler Angles of the LiNbO3 substrate are within a range of about 0°±5°, within a range of about θ±1.5°, within a range of about 0°±10°, the interdigital transducer electrode includes a main electrode, a film thickness of the main electrode normalized by a wavelength determined in accordance with an electrode finger pitch of the interdigital transducer electrode is denoted as T, and a density ratio of a material of the main electrode to Pt is denoted as r, the film thickness of the main electrode and θ of the Euler Angles satisfy θ=−0.05°/(T/r−0.04)+31.35°.

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Patent Owner(s)

  • MURATA MANUFACTURING CO LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mimura, Masakazu Nagaokakyo, JP 54 460

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