Wolfspeed has been granted a patent for an apparatus with a group III-Nitride barrier layer, a recovery enhancement circuit, and a p-region to reduce overload impact. The design includes a buffer layer with a higher bandgap for improved performance. GlobalData’s report on Wolfspeed 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 Wolfspeed, Quantum dot devices was a key innovation area identified from patents. Wolfspeed's grant share as of February 2024 was 74%. Grant share is based on the ratio of number of grants to total number of patents.
High-power vertical gan transistor with recovery enhancement circuit
A recently granted patent (Publication Number: US11929428B2) discloses an apparatus and method for enhancing recovery in electronic devices. The apparatus includes a substrate, a group III-Nitride barrier layer, a source, a gate, a drain, a p-region, and a recovery enhancement circuit. The p-region is strategically positioned below key components like the source, gate, and drain, with the group III-Nitride barrier layer having a higher bandgap than the buffer layer. The recovery enhancement circuit is designed to mitigate the impact of overloads received by the gate, reducing recovery time, gate lag, and other related effects.
Furthermore, the patent details various configurations and methods for implementing the recovery enhancement circuit, including responding to overload detection circuits, providing bias voltage or dynamic electrical pulses, and utilizing components like voltage sensors and comparators. The apparatus also features connections to the p-region and field plates for improved functionality. The method outlined in the patent involves steps such as providing the substrate, configuring the recovery enhancement circuit, and positioning the p-region below critical areas. Overall, the patent aims to enhance the performance and reliability of electronic devices by effectively managing overloads and recovery processes.
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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.
