Company takes decisive action to protect its foundational GaN and SiC intellectual property portfolio

Wolfspeed (NYSE:WOLF), a U.S.-based pioneer in wide bandgap compound semiconductor technology, today announced that it has filed a patent infringement lawsuit in the United States District Court for the District of Delaware against Navitas Semiconductor ("Navitas").

The lawsuit asserts that a broad range of Navitas products infringes multiple Wolfspeed patents, including U.S. Patent Nos. 8,169,005, 10,998,418, 10,886,396, 10,749,443, and 11,888,392. Products accused of infringement encompass major product lines of Navitas, including its GaN-based FETs — such as the GaNFast®, GaNSlim™, and GaNSafe® product families — as well as Navitas's GeneSiC™ MOSFETs and SiCPAK® modules.

Wolfspeed has established a decades-long heritage of technological leadership in silicon carbide (SiC) materials, gallium nitride (GaN)-based transistors, and SiC-based MOSFETs and modules. That legacy of innovation has culminated in a broad and fundamental patent portfolio that underpins the modern wide bandgap semiconductor industry.

"Wolfspeed's foundational technology helped create this industry, and we are deeply committed to defending the intellectual property that represents decades of innovation and R&D investment. We respect the IP rights of others, and we expect the same respect in return," said Robert Feurle, Wolfspeed's chief executive officer. "Protecting our patent portfolio is a strategic priority for the company and our shareholders. This action reflects our commitment to enforcing our rights and protecting continued investment in next-generation SiC and GaN technologies."

About Wolfspeed, Inc.

Wolfspeed (NYSE:WOLF) leads the market in the worldwide adoption of silicon carbide technologies that power the world’s most disruptive innovations. As the pioneers of silicon carbide, and creators of the most advanced semiconductor technology on earth, we are committed to powering a better world for everyone. Through silicon carbide material, Power Modules, Discrete Power Devices and Power Die Products targeted for various applications, we will bring you The Power to Make It Real™. Learn more at wolfspeed.com.

Wolfspeed® is a registered trademark and The Power to Make It Real™ is a trademark of Wolfspeed, Inc. Navitas®, GaNFast®, GaNSafe®, and SiCPAK® are registered trademarks and GaNSlim™ and GeneSiC™ are trademarks of Navitas Semiconductor Limited.

Forward-Looking Statements

This press release contains forward-looking statements involving risks and uncertainties, both known and unknown, that may cause Wolfspeed’s actual results to differ materially from those indicated in the forward-looking statements. Forward-looking statements by their nature address matters that are, to different degrees, uncertain, such as statements about Wolfspeed’s strategic plans, priorities, growth opportunities, and ability to achieve profitability. Actual results could differ materially due to factors detailed in Wolfspeed’s filings with the U.S. Securities and Exchange Commission ("SEC"), including its most recent Annual Report on Form 10-K and subsequent SEC filings. These forward-looking statements represent Wolfspeed’s judgment as of the date of this release. Except as required under U.S. federal securities laws, Wolfspeed disclaims any intent or obligation to update any forward-looking statements after the date of this release.

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