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Wolfspeed, Inc. is an American developer and manufacturer of broad-bandgap semiconductors, focused on silicon carbide and gallium nitride materials and units for power and radio frequency purposes reminiscent of transportation, power provides, EcoLight energy inverters, and wireless methods. Cree Research was founded in July 1987 in Durham, North Carolina. Five of the six founders - Neal Hunter, Thomas Coleman, John Edmond, LED bulbs for home Eric Hunter, EcoLight John Palmour, and EcoLight Calvin Carter - are graduates of North Carolina State College. In 1983, the founders - one a analysis assistant professor EcoLight and the others scholar researchers - had been seeking ways to leverage the properties of silicon carbide to allow semiconductors to function at larger operating temperatures and power ranges. They also knew silicon carbide could serve as the diode in mild-emitting diode (LED) lighting, a mild supply first demonstrated in 1907 with an electrically charged diode of silicon carbide. The analysis team devised a strategy to grow silicon crystals within the laboratory, and in 1987 based the corporate to supply silicon carbide to be used commercially in each semiconductors and lighting.

In 1989, the corporate introduced the primary blue LED, enabling the event of giant, full-colour video screens and billboards. In 1991, the corporate released the first business silicon carbide wafer. In 1993, the corporate became a public company by way of an preliminary public providing. In 2011, the corporate acquired Ruud Lighting for $525 million. In August 2011, the company introduced the XLamp XT-E Royal Blue LED for use in distant phosphor lighting. In 2013, the corporate's first shopper merchandise, two household LED bulbs, certified for Power Star rating by the United States Environmental Safety Company. In July 2016, Infineon Technologies agreed to acquire the company's Wolfspeed RF and energy electronics units unit for $850 million. However, the deal was terminated in February 2017 as a consequence of regulators’ national security considerations. In March 2018, the company acquired the RF Energy Enterprise Infineon Applied sciences AG's for €345 million. In May 2019, the corporate offered its Lighting Merchandise division (now branded as Cree Lighting) to Splendid Industries.

In September 2019, the company announced a $1 billion funding in a semiconductor manufacturing plant in Marcy, New York to construct the world’s largest silicon carbide fabrication facility with a $500 million grant from New York State. In March 2021, the corporate offered its LED Business to Sensible Global Holdings for as much as $300 million. In October 2021, the corporate modified its name to Wolfspeed. In April 2022, the Marcy, New York, facility opened. In November 2022, the corporate introduced that co-founder and Chief Technology Officer John Palmour had died. In February 2023 it announced it would build its first European manufacturing unit in Germany. It's alleged to be on the positioning of a former coal plant in Ensdorf, Saarland with ZF Friedrichshafen as a coinvestor and subsidized by the EU as an essential project of widespread European interest (IPCEI) for Microelectronics and Communication Technologies. In August 2023, it was announced the Lowell-headquartered semiconductor firm, MACOM had entered into a definitive settlement to accumulate Wolfspeed's RF enterprise.

In June 2024, Wolfspeed has delayed its $three billion semiconductor plant in Germany to mid-2025, reflecting the EU's challenges in boosting native chip manufacturing. Wolfspeed introduced the mission's indefinite hold in October 2024, EcoLight solutions citing low demand. Because of this, ZF ceased to participate within the mission. In October 2024, the Biden Administration introduced that it would offer Wolfspeed with as much as $750 million in direct funding to help the company's new silicon carbide manufacturing facility in North Carolina that makes the wafers utilized in advanced computer chips and its factory in Marcy, EcoLight New York. On Might 20, 2025, it was reported that Wolfspeed was getting ready to file for Chapter eleven bankruptcy inside the coming weeks after warning that it may be unable to proceed future operations after decrease than anticipated annual gross sales have been reported. Wolfspeed's inventory slid to barely over a dollar per share that day. On June 18, 2025, Wolfspeed introduced that they might promote itself to Apollo Global Management in a deal that would put the corporate right into a prepackaged Chapter eleven bankruptcy filing, which would allow for the elimination of nearly all of its multi-billion dollar debt.

Wolfspeed entered into a restructuring help settlement with its lenders and Renesas Electronics, and introduced that they would file for prepackaged Chapter 11 bankruptcy by July 1, as a part of a plan to get rid of $4.6 billion of debt, stating they only had about $1.1 billion left in money. The company can even receive $275 million in financing backed by its lenders, with plans to complete restructuring by Q3 2025. After the announcement, Wolfspeed's inventory fell 30%, sliding beneath $1 per share. On June 26, 2025, Wolfspeed started laying off staff from their manufacturing facility positioned 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 demise in addition to public concern for the company's poor work security file. State Department of Labor investigations into the company have uncovered 17 workplace safety violations between 2012 and 2023, EcoLight reviews together with six serious violations.