ACOUSTIC WAVE DEVICE

Abstract: an acoustic wave device includes a piezoelectric film including a piezoelectric layer including a piezoelectric body, one of first and second comb electrodes connected to an input potential and the other of the first and second comb electrodes connected to an output potential. an order in which a first electrode finger, a second electrode finger, and a third electrode finger are arranged side by side is an order in which the first electrode finger, the third electrode finger, the second electrode finger, and the third electrode finger are set as one period when the order is started from the first electrode finger. at least one of a portion of the first comb electrode and a portion of the third electrode, and a portion of the second comb electrode and a portion of the third electrode intersects each other on the piezoelectric layer with the insulator layer interposed therebetween.

Inventor(s): Masakazu MIMURA, Sho NAGATOMO, Naohiro NODAKE

CPC Classification: H03H9/132 (IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (measuring, testing ; arrangements for producing a reverberation or echo sound ; impedance networks or resonators consisting of distributed impedances, e.g. of the waveguide type, ; control of amplification, e.g. bandwidth control of amplifiers, ; tuning resonant circuits, e.g. tuning coupled resonant circuits, ; networks for modifying the frequency characteristics of communication systems ))

Search for rejections for patent application number 20250183870