Wolfspeed, Inc. is an American semiconductor company headquartered in Durham, North Carolina. It specializes in silicon carbide, or SiC, a material used to manufacture components capable of converting and controlling electrical energy with low losses. Active in both materials and power devices, it serves the automotive, industrial and energy markets in particular. Its corporate website is wolfspeed.com.
From Cree to Wolfspeed: an industrial refocus
The company traces its origins to Cree, founded in 1987 by a group affiliated with North Carolina State University. It initially developed expertise in wide-bandgap semiconductors, then became known for LEDs and lighting. Silicon carbide has been a technological foundation throughout this journey.
After selling its lighting operations in 2019 and its LED business in 2021, Cree adopted the Wolfspeed name in 2021. This change reflected a refocus on materials and power electronics. The sale of its radio frequency business to MACOM, completed in 2023, continued this specialization. Its history also includes a financial restructuring initiated in 2025 to reduce its debt.
From substrates to power components
Wolfspeed operates at several stages of the value chain. The company produces silicon carbide materials, including substrates for semiconductor manufacturing, and markets power components, including MOSFET transistors and diodes. Its presence in both materials and components allows it to coordinate their development while also supplying other manufacturers.
Compared with conventional silicon, SiC offers advantages for certain applications involving high voltages, high temperatures or fast switching. It can help reduce losses and make systems more compact. Its applications include traction inverters for electric vehicles, onboard chargers, charging infrastructure and industrial power conversion equipment.
Production nevertheless remains demanding: crystal quality, defect control and manufacturing yields determine costs. The Mohawk Valley factory in New York State, opened in 2022, illustrates Wolfspeed’s transition to 200-millimeter wafers for its SiC components.
What comes next?
For Wolfspeed, the challenge is to turn its industrial investments into marketable production volumes and sustainable profitability. Factory ramp-ups must keep pace with demand, which depends, among other factors, on the rate of electric vehicle adoption and automakers’ technological choices.
International competition, pricing pressure and financing needs make this transition challenging. Its trajectory will depend on its ability to improve yields, retain customers and adjust capacity without further weakening its financial position. SiC’s potential is real, but it does not eliminate the need for rigorous industrial execution.