Patent ID: 11879870
Assignee: KYOCERA CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A method of manufacturing a sensor device, comprising:
forming a metal layer on a substrate,
removing a part of the metal layer to form a first interdigital transducer (IDT) electrode, a second IDT electrode, and a first immobilized layer positioned between the first IDT electrode and the second IDT electrode, wherein the first immobilized layer has a recessed surface;
forming a protective film that covers the first IDT electrode, the second IDT electrode, and the first immobilized layer;
removing a part of the protective film to expose at least a part of the first immobilized layer; and
forming a second immobilized layer on at least a part of an exposed surface of the first immobilized layer, wherein the second immobilized layer is positioned on the recessed surface.