Patent ID: 6888426

Claim:
A resonator comprising: a dielectric member; and an electrode formed on the dielectric member, the electrode having: a first multilayer thin-film portion formed from alternately layered conductive thin films and a dielectric thin film, the first multilayer thin-film portion having a displacement area provided in a first interface between the dielectric member and the electrode in which a first electric field has a higher vertical component than a predetermined threshold, and a second multilayer thin-film portion formed from the same number of layered films as the first multilayer thin-film portion, the second multilayer thin-film portion having a steady area provided in a second interface between the dielectric member and the electrode in which a second electric field has a lower vertical component than the predetermined threshold, wherein the corresponding conductive thin films of the first multilayer thin-film portion and the second multilayer thin-film portion are electrically connected to each other.