Coherent has been granted a patent for a bulk acoustic resonator featuring a resonator body with a piezoelectric layer and a conductive layer. The design allows for resonance in a composite mode, combining thickness and lateral acoustic resonance, enhancing its operational capabilities. GlobalData’s report on Coherent gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Coherent, Lithium-ion batteries was a key innovation area identified from patents. Coherent's grant share as of June 2024 was 62%. Grant share is based on the ratio of number of grants to total number of patents.
Bulk acoustic resonator with composite acoustic resonance mode
The granted patent US12021499B2 describes a bulk acoustic resonator designed to operate in a composite mode of acoustic resonance, which combines both thickness and lateral modes. The resonator body consists of a piezoelectric layer and a first conductive layer with multiple conductive elements spaced apart by a specific pitch. Additional features include a device layer that supports the resonator body, which can be made of materials such as diamond or silicon, and may include temperature compensation layers. The design allows for the resonator body to be mounted directly onto a carrier, enhancing its integration into various applications.
Further claims detail the structural configuration of the resonator, including the potential for a second conductive layer and the arrangement of substrates. The patent specifies that the lateral mode resonance should contribute significantly to the overall power of the composite mode resonance. It also outlines the use of connecting structures that facilitate electrical signal conduction between the resonator body and external components. The carrier can be made from various materials, including ceramic or printed circuit board substrates, and the resonator body can be attached using different bonding methods. Overall, the patent presents a comprehensive design for a bulk acoustic resonator with enhanced performance characteristics suitable for advanced electronic applications.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
