Melexis has been granted a patent for a sensor device with two sensing areas made of compound semiconductor materials on a silicon substrate. The processing circuit computes the difference between signals from each area for increased sensitivity. The design allows for a distance optimization to enhance performance. GlobalData’s report on Melexis gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Melexis, was a key innovation area identified from patents. Melexis's grant share as of February 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.

Magnetic sensor device with high sensitivity

Source: United States Patent and Trademark Office (USPTO). Credit: Melexis NV

A recently granted patent (Publication Number: US11927606B2) discloses a sensor device designed for higher sensitivity. The device includes a silicon substrate with two sensing areas, each containing magnetic sensing elements. A processing circuit within the substrate derives signals from these elements and computes the difference between them. The unique configuration ensures that the distance between the edges of the substrate and the sensing elements optimizes sensitivity, making it ideal for precise measurements.

Furthermore, the patent details various configurations and features of the sensor device, such as the use of Hall effect elements, temperature and stress sensors within the processing circuit, and the materials used for the magnetic sensing elements. The sensor device is described as coreless and includes provisions for adjusting signals based on temperature and stress inputs. Additionally, the patent covers the integration of the sensor device into a larger sensor system, highlighting its application in current sensing. The system includes the sensor device in a package with external conductors for electrical current, with the magnetic sensing elements arranged perpendicular or parallel to the current direction, showcasing the versatility and adaptability of the technology.

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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.