Qualcomm had 36 patents in advanced materials during Q1 2024. Qualcomm Inc’s patents filed in Q1 2024 focus on bulk acoustic wave (BAW) devices for high-frequency filters and wireless communication. These devices include unique layer configurations, sandwich electrodes, and cavity stacks to achieve higher order resonant frequencies and bulk wave suppression. The designs feature innovative electrode structures, piezoelectric layers, and cavity configurations to optimize performance and functionality in microacoustic filters and stacked electroacoustic devices. GlobalData’s report on Qualcomm gives a 360-degree view of the company including its patenting strategy. Buy the report here.

Qualcomm grant share with advanced materials as a theme is 50% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.

Recent Patents

Application: Bulk acoustic wave (BAW) device with oppositely polarized piezoelectric layers for higher order resonance and method of manufacture (Patent ID: US20240106408A1)

The patent filed by Qualcomm Inc. describes a bulk acoustic wave (BAW) device with a unique layer stack configuration to achieve higher order resonant frequencies. The device includes first and second electrodes, a first piezoelectric layer with a specific polarization, and a second piezoelectric layer with an opposite polarization. The layer stack may also include intermediate layers, with a total combined thickness of less than 4% of the total stack thickness. The device is designed as a two-terminal device without a metal layer serving as a third electrode.

The claims associated with the patent detail the specific configurations and materials used in the BAW device, such as the use of amorphous layers like titanium nitride or silicon dioxide, and the inclusion of a seed layer to determine the polarization of the second piezoelectric layer. The method of fabricating the device involves forming the layer stack with precise steps, including the use of sacrificial substrates, seed layers, and amorphous layers to achieve the desired structure. Overall, the patent focuses on the design and fabrication process of a high-frequency BAW device with improved performance characteristics.

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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.