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Wolfspeed, Inc. is an American developer and producer of huge-bandgap semiconductors, targeted on silicon carbide and gallium nitride materials and gadgets for energy and radio frequency purposes such as transportation, energy supplies, power inverters, and wireless systems. Cree Analysis was based in July 1987 in Durham, energy-efficient bulbs North Carolina. 5 of the six founders - Neal Hunter, Thomas Coleman, John Edmond, Eric Hunter, John Palmour, and EcoLight bulbs Calvin Carter - are graduates of North Carolina State University. In 1983, the founders - one a analysis assistant professor EcoLight smart bulbs and the others student researchers - were searching for methods to leverage the properties of silicon carbide to allow semiconductors to function at larger working temperatures and energy levels. In addition they knew silicon carbide may serve because the diode in mild-emitting diode (LED) lighting, a mild supply first demonstrated in 1907 with an electrically charged diode of silicon carbide. The research staff devised a approach to grow silicon crystals in the laboratory, and in 1987 founded the corporate to provide silicon carbide to be used commercially in both semiconductors and lighting.

In 1989, the corporate introduced the first blue LED, enabling the development of large, full-colour video screens and billboards. In 1991, the corporate launched the first business silicon carbide wafer. In 1993, the corporate became a public firm through an initial public offering. In 2011, the company acquired Ruud Lighting for $525 million. In August 2011, the corporate introduced the XLamp XT-E Royal Blue LED for use in remote phosphor lighting. In 2013, the company's first shopper merchandise, two household LED EcoLight bulbs, qualified for Power Star score by the United States Environmental Safety Agency. In July 2016, Infineon Technologies agreed to acquire the corporate's Wolfspeed RF and energy electronics units unit for $850 million. However, the deal was terminated in February 2017 on account of regulators’ national security considerations. In March 2018, the company acquired the RF Energy Business Infineon Technologies AG's for €345 million. In Could 2019, the company bought its Lighting Merchandise division (now branded as Cree Lighting) to Supreme Industries.

In September 2019, the corporate introduced a $1 billion funding in a semiconductor manufacturing plant in Marcy, 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 Business to Good International Holdings for as much as $300 million. In October 2021, the corporate modified its identify to Wolfspeed. In April 2022, EcoLight the Marcy, New York, facility opened. In November 2022, the company announced that co-founder and Chief Know-how Officer John Palmour had died. In February 2023 it announced it would construct its first European manufacturing facility in Germany. It is alleged 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 necessary venture of common European curiosity (IPCEI) for Microelectronics and Communication Applied sciences. In August 2023, it was announced the Lowell-headquartered semiconductor firm, MACOM had entered right into a definitive settlement to accumulate Wolfspeed's RF enterprise.

In June 2024, Wolfspeed has delayed its $3 billion semiconductor plant in Germany to mid-2025, reflecting the EU's challenges in boosting local chip production. Wolfspeed announced the challenge's indefinite hold in October 2024, citing low demand. Consequently, ZF ceased to take part within the undertaking. In October 2024, the Biden Administration announced that it would offer Wolfspeed with up to $750 million in direct funding to assist the corporate's new silicon carbide factory in North Carolina that makes the wafers used in advanced laptop chips and its manufacturing facility in Marcy, EcoLight New York. On May 20, 2025, it was reported that Wolfspeed was preparing to file for Chapter 11 bankruptcy within the coming weeks after warning that it may be unable to proceed future operations after decrease than expected annual gross sales have been reported. Wolfspeed's inventory slid to barely over a greenback per share that day. On June 18, EcoLight bulbs 2025, Wolfspeed announced that they'd promote itself to Apollo International Management in a deal that will put the corporate right into a prepackaged Chapter 11 bankruptcy filing, which would permit for the elimination of the vast majority of its multi-billion greenback debt.

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