Marvell Technology. has been granted a patent for an Integrated Circuit (IC) featuring an electronic fuse (eFuse) that can be programmed to a logical state. The IC includes a protection circuit to prevent misreading the eFuse’s state due to voltage supply variations. GlobalData’s report on Marvell Technology 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 Marvell Technology, Network virtualization was a key innovation area identified from patents. Marvell Technology's grant share as of June 2024 was 79%. Grant share is based on the ratio of number of grants to total number of patents.
Integrated circuit with programmable electronic fuse and protection circuit
The patent US12046553B2 describes an Integrated Circuit (IC) that incorporates an electronic fuse (eFuse) designed for selective programming to a logical state. The eFuse operates within a specific range of operational voltages, while the associated electronic circuitry functions over a broader voltage range. A key feature of this IC is a protection circuit that safeguards against misreading the eFuse's logical state, particularly when the voltage supply to the IC falls within the broader range but outside the eFuse's designated range. This ensures that the electronic circuitry does not inadvertently operate in a non-secure mode, even if the eFuse indicates a secure mode.
Additionally, the protection circuit may include multiple reference eFuses pre-programmed with predefined logical states, allowing for verification during operation. It can also incorporate additional eFuses programmed to match the primary eFuse's state, ensuring consistency. The circuit may utilize a voltage regulator to maintain a stable voltage for the eFuse, regardless of the supply voltage conditions. Furthermore, the eFuse can be programmed to two distinct logical states characterized by different resistance ranges, with mechanisms in place to detect and correct any discrepancies in post-programming resistance. The claims highlight the IC's ability to manage voltage ranges effectively, ensuring secure operation and reliability in various conditions.
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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.
