18735271. ACOUSTIC WAVE DEVICE simplified abstract (Murata Manufacturing Co., Ltd.)

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ACOUSTIC WAVE DEVICE

Organization Name

Murata Manufacturing Co., Ltd.

Inventor(s)

Chihiro Shoda of Nagaokakyo-shi (JP)

Yasuaki Shin of Nagaokakyo-shi (JP)

Yoshihisa Okano of Nagaokakyo-shi (JP)

Junpei Yasuda of Nagaokakyo-shi (JP)

ACOUSTIC WAVE DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18735271 titled 'ACOUSTIC WAVE DEVICE

The patent application describes an acoustic wave device with a package substrate and an acoustic wave element chip.

  • The device includes a piezoelectric layer with IDT electrodes on one side.
  • The piezoelectric layer is inclined with respect to its thickness direction.
  • The first main surface of the package substrate has two sides, with different edge distances.
  • The Z-axis of the piezoelectric layer defines a crystal axis.

Potential Applications:

  • This technology can be used in various acoustic wave applications such as sensors, filters, and resonators.

Problems Solved:

  • Provides improved performance and efficiency in acoustic wave devices.
  • Offers precise control and manipulation of acoustic waves.

Benefits:

  • Enhanced sensitivity and accuracy in acoustic wave applications.
  • Increased reliability and stability of acoustic wave devices.

Commercial Applications:

  • This technology can be applied in telecommunications, medical devices, and automotive systems, among others.

Questions about the Technology: 1. How does the inclined piezoelectric layer impact the performance of the acoustic wave device? 2. What are the specific advantages of having different edge distances on the package substrate?


Original Abstract Submitted

An acoustic wave device includes a package substrate including a first main surface, and an acoustic wave element chip on the first main surface and including a piezoelectric layer including second and third main surfaces facing each other, and IDT electrodes at the second main surface on a side of the first main surface. The first main surface includes first and second sides facing each other. The second main surface a first edge portion closer to the first side than the second side, and a second edge portion facing the first edge portion. A first inter-outer peripheral edge distance between the first side and the first edge portion is longer than a second inter-outer peripheral edge distance between the second side and the second edge portion. The piezoelectric layer has a Z-axis defining a crystal axis and inclined with respect to a thickness direction of the piezoelectric layer.