Patent ID: 6111480
Filing Date: 2000-08-29
Classification: H03H

Abstract:
A piezoelectric resonator including:a base member having a longitudinal direction;a plurality of inner electrodes disposed substantially perpendicularly to the longitudinal direction of said base member at intervals in the longitudinal direction of said base member; anda first external electrode and a second external electrode located on a surface of said base member and connected to said plurality of electrodes; whereinsaid base member includes a plurality of laminated piezoelectric layers polarized in the longitudinal direction of said base member;said plurality of inner electrodes are located on surfaces of said plurality of piezoelectric layers so as to be substantially perpendicular to the longitudinal direction of said base member;a cut is provided in an intermediate portion of said base member so that the cut extends along a longitudinal direction thereof and across a plurality of the inner electrodes and a plurality of the piezoelectric layers, the cut being arranged to adjust the resonant frequency of the piezoelectric resonator.