Patent ID: 8816567
Filing Date: 2014-08-26
Classification: H03H,Y10T

Abstract:
1. A resonator structure comprising: a first conductive layer of electrodes disposed along an X axis; a second conductive layer of electrodes disposed along the X axis and offset from the first conductive layer along a Z axis perpendicular to the X axis; and a piezoelectric layer including a piezoelectric material, the piezoelectric layer disposed between the first conductive layer and the second conductive layer, the piezoelectric layer having a first side and a second side opposite the first side, the first side proximate the first conductive layer, the second side proximate the second conductive layer; one or more trenches being formed in the piezoelectric layer on the first side in one or more respective space regions between the electrodes of the first conductive layer, the one or more trenches each having a depth configured to facilitate suppression of one or more spurious frequencies outside of a pass band of the resonator structure.