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US 11,418,166 B2Granted
Acoustic wave resonators having fresnel surfaces
AssigneeTexas Instruments Incorporated
InventorTing-Ta Yen
Life of this patent
Estimating the term…
Abstract
An example integrated circuit package includes an acoustic wave resonator, the acoustic wave resonator including a Fresnel surface. In some examples, the Fresnel surface includes a plurality of recessed features and/or protruding features at different locations on the Fresnel surface, each of the plurality of features to confine main mode acoustic energy from a respective portion of the Fresnel surface in a central portion of the acoustic wave resonator.
Claims9
An integrated circuit package, comprising:
- an acoustic wave resonator including:
- a piezoelectric material having an edge, the edge having spaced-apart refracting surfaces;
- a first electrode having a first one or more fingers on the piezoelectric material;
- and a second electrode having a second one or more fingers on the piezoelectric material, the second one or more fingers interlaced with the first one or more fingers.
1 more element
An acoustic wave resonator, comprising:
- a piezoelectric material having a central portion and first and second edges, the first and second edges having spaced-apart refracting surfaces, and the refracting surfaces having protruding features that confine main mode acoustic energy from different portions of the piezoelectric material in the central portion;
- a first electrode having a first one or more fingers on the piezoelectric material;
- and
- a second electrode having a second one or more fingers on the piezoelectric material, the second one or more fingers interlaced with the first one or more fingers.
1 more element
Dependencies are inferred from the claim text.