18596849. ACOUSTIC WAVE DEVICE simplified abstract (Murata Manufacturing Co., Ltd.)
Contents
ACOUSTIC WAVE DEVICE
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
Katsuya Daimon of Nagaokakyo-shi (JP)
ACOUSTIC WAVE DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18596849 titled 'ACOUSTIC WAVE DEVICE
The abstract describes an acoustic wave device with a piezoelectric layer made of lithium niobate or lithium tantalate, an interdigital transducer electrode with busbars and electrode fingers, and an acoustic reflection portion that overlaps part of the IDT electrode. The device has a d/p ratio of 0.5 or less, an intersecting region with central and edge regions, and gap regions between the intersecting region and the busbars. At least one mass addition film is present in the edge regions or gap regions, with varying thicknesses at different points within the film.
- The device features a piezoelectric layer of lithium niobate or lithium tantalate.
- It includes an interdigital transducer electrode with busbars and electrode fingers.
- An acoustic reflection portion overlaps part of the IDT electrode.
- The device has a d/p ratio of 0.5 or less.
- Mass addition films with varying thicknesses are present in the edge regions or gap regions.
Potential Applications: - Acoustic wave sensors - Ultrasonic medical imaging devices - Non-destructive testing equipment
Problems Solved: - Improved acoustic wave device performance - Enhanced sensitivity and accuracy in acoustic wave applications
Benefits: - Higher quality acoustic wave signals - Increased precision in acoustic measurements - Potential for miniaturization in device design
Commercial Applications: Title: Advanced Acoustic Wave Devices for Precision Sensing Applications This technology could be utilized in industries such as healthcare, manufacturing, and telecommunications for various sensing and measurement applications. The market implications include improved product quality, increased efficiency, and enhanced data accuracy.
Questions about Acoustic Wave Devices: 1. How do mass addition films impact the performance of acoustic wave devices? Mass addition films can help fine-tune the acoustic properties of the device, leading to improved sensitivity and accuracy in measurements.
2. What are the key advantages of using lithium niobate or lithium tantalate in the piezoelectric layer of acoustic wave devices? These materials offer high piezoelectric coefficients, making them ideal for generating and detecting acoustic waves with precision.
Original Abstract Submitted
An acoustic wave device includes a support, a piezoelectric layer including lithium niobate or lithium tantalate, and an interdigital transducer electrode including busbars and electrode fingers. An acoustic reflection portion overlaps a portion of the IDT electrode. d/p is about 0.5 or less. An intersecting region includes a central region and edge regions. Gap regions are located between the intersecting region and the busbars. At least one mass addition film is provided in at least one of the edge regions or the gap regions, where any two points, in an electrode finger facing direction, of a portion in which the mass addition film is located are first and second points, thicknesses of the mass addition film at at least a pair of the first point and the second point are different from each other.
