18540949. ACOUSTIC WAVE DEVICE simplified abstract (Murata Manufacturing Co., Ltd.)

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ACOUSTIC WAVE DEVICE

Organization Name

Murata Manufacturing Co., Ltd.

Inventor(s)

Tetsuya Kimura of Nagaokakyo-shi (JP)

ACOUSTIC WAVE DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18540949 titled 'ACOUSTIC WAVE DEVICE

Simplified Explanation

The patent application describes an acoustic wave device with a unique design to improve performance and reliability.

  • The device includes a support substrate, a piezoelectric layer, a space, and a functional electrode.
  • The support has a space overlapping the functional electrode, which consists of two metal layers with different expansion coefficients.
  • The second metal layer has a smaller expansion coefficient than the first metal layer.

Potential Applications

This technology could be used in:

  • Acoustic wave sensors
  • Medical ultrasound devices
  • Communication systems

Problems Solved

  • Improved performance of acoustic wave devices
  • Enhanced reliability and durability
  • Better signal quality in acoustic applications

Benefits

  • Higher sensitivity
  • Increased accuracy
  • Longer lifespan of devices

Potential Commercial Applications

  • Consumer electronics
  • Healthcare industry
  • Telecommunications sector

Possible Prior Art

There may be prior art related to acoustic wave devices with different electrode designs, but specific information is not provided in the abstract.

Unanswered Questions

How does the device compare to existing acoustic wave technologies?

The article does not provide a comparison with other acoustic wave devices on the market.

What are the specific industries that could benefit most from this technology?

The abstract mentions potential applications but does not specify which industries could benefit the most.


Original Abstract Submitted

An acoustic wave device includes a support including a support substrate, a piezoelectric layer on the support substrate, a space overlapping at least a portion of the piezoelectric layer, and a functional electrode on the piezoelectric layer. The support includes a space at a position at least partially overlapping the functional electrode in plan view. The functional electrode includes a first metal layer and a second metal layer on at least a portion of the first metal layer. A linear expansion coefficient of the second metal layer is smaller than a linear expansion coefficient of the first metal layer.