Patent ID: 11863155
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A surface acoustic wave element comprising:
a substrate including a LiNbO3 piezoelectric single crystal;
a first dielectric layer provided directly or indirectly on the substrate;
an IDT electrode provided directly or indirectly on the first dielectric layer; and
a second dielectric layer provided directly or indirectly on the IDT electrode; wherein
at least a portion of the first dielectric layer is provided between the IDT electrode and the substrate;
the first dielectric layer has a thickness less than a thickness of the second dielectric layer;
a high-frequency signal is propagated on the substrate using a Rayleigh wave; and
when a high-frequency signal is input to the IDT electrode, a generation position of a maximum amplitude of vibration generated in the surface acoustic wave element is located in the second dielectric layer.