ACOUSTIC WAVE DEVICE: abstract simplified (18130930)

• This abstract for appeared for patent application number 18130930 Titled 'ACOUSTIC WAVE DEVICE'

Simplified Explanation

The abstract describes an acoustic wave device that consists of two layers of piezoelectric material (lithium niobate or lithium tantalate). Each layer has a pair of electrodes on one surface. The first layer and its electrodes create a first acoustic wave resonator, while the second layer and its electrodes create a second acoustic wave resonator. The crystal orientation of the first layer is at a different angle compared to the second layer, with respect to the direction perpendicular to the electrodes.

Original Abstract Submitted

An acoustic wave device includes first and second piezoelectric layers including lithium niobate or lithium tantalate, a pair of first and second electrodes on a first principal surface of the first piezoelectric layer, and a pair of third and fourth electrodes on a first principal surface of the second piezoelectric layer, wherein the first piezoelectric layer and the first and second electrodes define a first acoustic wave resonator, the second piezoelectric layer and the third and fourth electrodes define a second acoustic wave resonator, and an angle between a crystal orientation of the first piezoelectric layer and a direction perpendicular or substantially perpendicular to a lengthwise direction of the pair of the first and second electrodes is different from an angle between a crystal orientation of the second piezoelectric layer and a direction perpendicular or substantially perpendicular to a lengthwise direction of the pair of the third and fourth electrodes.