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Murata manufacturing co., ltd. (20240186983). XBAR RESONATORS WITH NON-RECTANGULAR DIAPHRAGMS simplified abstract

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XBAR RESONATORS WITH NON-RECTANGULAR DIAPHRAGMS

Organization Name

murata manufacturing co., ltd.

Inventor(s)

Ventsislav Yantchev of Sofia (GB)

Patrick Turner of Portola Valley CA (US)

Viktor Plesski of Gorgier (CH)

Julius Koskela of Helsinki (FI)

Robert B. Hammond of Rockville MD (US)

XBAR RESONATORS WITH NON-RECTANGULAR DIAPHRAGMS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240186983 titled 'XBAR RESONATORS WITH NON-RECTANGULAR DIAPHRAGMS

Simplified Explanation

An acoustic resonator device with a piezoelectric plate attached to a substrate to create a cavity, with an interdigital transducer exciting an acoustic mode in the diaphragm.

  • The device includes a single-crystal piezoelectric plate attached to a substrate, forming a diaphragm.
  • An interdigital transducer on the piezoelectric plate excites an acoustic mode in the diaphragm.
  • The diaphragm's edge is at an oblique angle to the transducer fingers.

Key Features and Innovation

  • Acoustic resonator device with a unique diaphragm design.
  • Interdigital transducer for exciting acoustic modes.
  • Single-crystal piezoelectric plate for enhanced performance.

Potential Applications

  • Wireless communication devices.
  • Sensors and actuators.
  • Frequency filters in electronic devices.

Problems Solved

  • Improved acoustic resonance in small devices.
  • Enhanced sensitivity and efficiency in acoustic applications.

Benefits

  • Higher performance in acoustic devices.
  • Increased precision in frequency filtering.
  • Compact design for space-constrained applications.

Commercial Applications

Acoustic Resonator Devices for Wireless Communication and Sensor Technologies This technology can revolutionize the wireless communication industry by providing more efficient and precise acoustic resonator devices for various applications, including sensors and frequency filters.

Prior Art

No prior art information available at this time.

Frequently Updated Research

Currently, there is ongoing research on optimizing the design of acoustic resonator devices for better performance and broader applications.

Questions about Acoustic Resonator Devices

Question 1

How does the unique diaphragm design impact the performance of the acoustic resonator device?

Answer: The diaphragm design influences the acoustic modes excited by the interdigital transducer, leading to improved resonance and sensitivity in the device.

Question 2

What are the potential challenges in scaling up this technology for commercial production?

Answer: Scaling up the production of acoustic resonator devices may face challenges related to maintaining the quality of single-crystal piezoelectric plates and ensuring uniformity in the fabrication process.


Original Abstract Submitted

acoustic resonator devices, filter devices, and methods of fabrication are disclosed. an acoustic resonator includes a substrate having a surface and a single-crystal piezoelectric plate having front and back surfaces. the back surface is attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm that spans a cavity in the substrate. an interdigital transducer (idt) is formed on the front surface of the single-crystal piezoelectric plate such that interleaved fingers of the idt are disposed on the diaphragm. the idt is configured to excite a primary acoustic mode in the diaphragm in response to a radio frequency signal applied to the idt. at least a portion of an edge of the diaphragm is at an oblique angle to the fingers.

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