Importance

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Abstract

The present disclosure provides a surface acoustic wave resonator device and manufacturing method therefor, and filter, the surface acoustic wave resonator device includes: an interdigital transducer located on a base substrate and including: first and second interdigital electrode lead-out parts; a plurality of first interdigital electrodes; and a plurality of second interdigital electrodes, disposed to be offset and parallel to the plurality of first interdigital electrodes, each interdigital electrode includes a body structure and a protruding structure which are integrally formed, the protruding structure is disposed at an end portion of the each interdigital electrode and protruded from a surface of the body structure at a side away from the base substrate in a third direction perpendicular to the base substrate, wherein the protruding structure and the body structure have sidewalls aligned with each other in the third direction.

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First Claim