On July 7, 2026, Wolfspeed formally filed a complaint with the U.S. District Court for the District of Delaware, accusing fabless power semiconductor company Navitas Semiconductor of infringing five of its foundational patents across Navitas's entire portfolio of gallium nitride (GaN) and silicon carbide (SiC) power devices.

Scope of Accused Products

The accused products span nearly all of Navitas's current revenue-generating core offerings, including its three flagship GaN product lines: the GaNFast® series targeting consumer electronics fast-charging, the ultra-thin high-density GaNSlim™ solution, and the GaNSafe® series designed for industrial and automotive high-reliability applications. Additionally, the lawsuit encompasses Navitas's automotive-grade GeneSiC™ SiC MOSFETs and SiCPAK® integrated power modules.

These technologies are widely deployed in mainstream high-power applications such as fast-charging adapters, new energy vehicle powertrains, photovoltaic energy storage inverters, and AI server power supplies. Notably, Navitas had previously entered into an agreement with NVIDIA to supply GaNFast and GeneSiC chips for its AI data center 800V high-voltage DC power architecture.

Wolfspeed's Claims

In the lawsuit, Wolfspeed requests the court to find Navitas liable for patent infringement and issue a permanent injunction prohibiting the defendant from manufacturing, importing, or distributing all accused devices within the United States. Wolfspeed also seeks compensation for economic damages caused by the infringement, reasonable patent licensing fees, and full reimbursement of legal expenses incurred in this litigation.

Navitas's Response

On July 8, Navitas swiftly issued a statement contesting Wolfspeed's allegations, calling the lawsuit "without merit" and pledging to mount a vigorous defense with full confidence in prevailing. Navitas emphasized that its technologies stem from decades of independent innovation, research, and investment, and that the company holds over 300 granted or pending patents worldwide, demonstrating its deep respect for intellectual property.

Strategic Context

This litigation reflects the increasingly fierce competition within the wide-bandgap semiconductor market. As a long-established leader in SiC materials and devices, Wolfspeed is leveraging legal means to fortify its technological moat. Meanwhile, Navitas—a pure-play GaN/SiC design house founded in 2014—has rapidly ascended in AI data centers, electric vehicles, and energy infrastructure through its GaNFast power ICs and GeneSiC silicon carbide devices.

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