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US 2022/0069803 A1Published application
Elastic wave device, splitter, and communication apparatus
AssigneeKYOCERA Corporation
InventorSoichiro NOZOE
Life of this patent
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Abstract
An elastic wave device includes a substrate, a multilayer film located on the substrate, an LT layer located on the multilayer film and made of a single crystal of LiTaO3, and an IDT electrode located on the LT layer. The LT layer has a thickness of 0.3λ or less, where λ is twice a pitch of electrode fingers of the IDT electrode. The LT layer has Euler angles of (0°±10°, −25° or more and 15° or less, 0° or more and 360° or less).
Claims11
An elastic wave device comprising:
- an LN layer made of a single crystal of LiNbO3;
- and
- a plurality of resonators each including an IDT electrode located on the LN layer,
- wherein the LN layer has a thickness of 0.3λ or less, where λ is twice a pitch of electrode fingers of the IDT electrode, and
- wherein the LN layer has Euler angles (ϕ, θ, ψ) of (0°±10°, −25° or more and 15° or less, 0° or more and 360°).
2 more elements
Dependencies are inferred from the claim text.