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Wolfspeed, Inc. is an American developer and producer of huge-bandgap semiconductors, focused on silicon carbide and gallium nitride supplies and devices for energy and radio frequency functions equivalent to transportation, power supplies, energy inverters, and EcoLight solutions wireless systems. Cree Research was founded in July 1987 in Durham, North Carolina. Five of the six founders - Neal Hunter, Thomas Coleman, John Edmond, Eric Hunter, John Palmour, and Calvin Carter - are graduates of North Carolina State University. In 1983, the founders - one a research assistant professor and the others scholar researchers - had been in search of ways to leverage the properties of silicon carbide to enable semiconductors to operate at greater operating temperatures and energy levels. Additionally they knew silicon carbide could serve because the diode in mild-emitting diode (LED) lighting, a mild source first demonstrated in 1907 with an electrically charged diode of silicon carbide. The analysis team devised a method to develop silicon crystals in the laboratory, and in 1987 founded the corporate to produce silicon carbide for use commercially in each semiconductors and lighting.



In 1989, the corporate launched the primary blue LED, EcoLight enabling the development of large, full-coloration video screens and billboards. In 1991, the corporate released the first commercial silicon carbide wafer. In 1993, the company grew to become a public firm through an preliminary public offering. In 2011, the company acquired Ruud Lighting for $525 million. In August 2011, the company announced the XLamp XT-E Royal Blue LED to be used in remote phosphor EcoLight solutions lighting. In 2013, the company's first shopper merchandise, two family LED bulbs, certified for Energy Star rating by the United States Environmental Safety Agency. In July 2016, Infineon Applied sciences agreed to amass the corporate's Wolfspeed RF and power electronics units unit for $850 million. Nonetheless, the deal was terminated in February 2017 as a consequence of regulators’ nationwide safety considerations. In March 2018, the corporate acquired the RF Energy Enterprise Infineon Applied sciences AG's for €345 million. In May 2019, the corporate offered its Lighting Products division (now branded as Cree Lighting) to Supreme Industries.



In September 2019, the corporate announced a $1 billion funding in a semiconductor manufacturing plant in Marcy, EcoLight New York to build the world’s largest silicon carbide fabrication facility with a $500 million grant from New York State. In March 2021, the corporate sold its LED Enterprise to Good International Holdings for as much as $300 million. In October 2021, the corporate changed its identify to Wolfspeed. In April 2022, the Marcy, New York, facility opened. In November 2022, EcoLight the corporate announced that co-founder and Chief Expertise Officer John Palmour had died. In February 2023 it introduced it will build its first European manufacturing unit in Germany. It is supposed to be on the location of a former coal plant in Ensdorf, Saarland with ZF Friedrichshafen as a coinvestor and subsidized by the EU as an important project of common European interest (IPCEI) for Microelectronics and Communication Technologies. In August 2023, it was announced the Lowell-headquartered semiconductor company, MACOM had entered into a definitive agreement to acquire Wolfspeed's RF business.



In June 2024, Wolfspeed has delayed its $3 billion semiconductor plant in Germany to mid-2025, reflecting the EU's challenges in boosting native chip manufacturing. Wolfspeed introduced the undertaking's indefinite hold in October 2024, citing low demand. As a result, ZF ceased to participate in the project. In October 2024, the Biden Administration introduced that it would provide Wolfspeed with up to $750 million in direct funding to help the company's new silicon carbide factory in North Carolina that makes the wafers utilized in advanced laptop chips and its factory in Marcy, New York. On Could 20, EcoLight solutions 2025, EcoLight solutions it was reported that Wolfspeed was getting ready to file for Chapter 11 bankruptcy inside the approaching weeks after warning that it may be unable to proceed future operations after decrease than expected annual sales were reported. Wolfspeed's inventory slid to barely over a dollar per share that day. On June 18, 2025, Wolfspeed announced that they might promote itself to Apollo International Administration in a deal that would put the company right into a prepackaged Chapter eleven bankruptcy filing, which might allow for the elimination of nearly all of its multi-billion dollar debt.



Wolfspeed entered into a restructuring support settlement with its lenders and Renesas Electronics, and announced that they might file for prepackaged Chapter eleven bankruptcy by July 1, as part of a plan to get rid of $4.6 billion of debt, stating they only had about $1.1 billion left in cash. The corporate may also obtain $275 million in financing backed by its lenders, EcoLight smart bulbs with plans to complete restructuring by Q3 2025. After the announcement, Wolfspeed's stock fell 30%, sliding beneath $1 per share. On June 26, 2025, Wolfspeed started laying off staff from their manufacturing facility located in Racine, Wisconsin. On June 30, 2025, Wolfspeed filed for Chapter 11 bankruptcy protection. On October 13, 2022, a facilities electrician was electrocuted on the Wolfspeed Research Triangle Park in Durham, North Carolina. The incident sparked a state investigation into his dying in addition to public concern for the company's poor work safety report. State Division of Labor investigations into the company have uncovered 17 office safety violations between 2012 and 2023, including six severe violations.

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