Overview
The John Palmour Manufacturing Center (JP-MAC) in Siler City, North Carolina, is Wolfspeed's flagship 200mm silicon carbide materials factory, named for the company's co-founder. Built to be the world's largest and most advanced SiC crystal-growth and substrate facility, it began activating its initial furnaces in 2024 and supplies 200mm SiC wafers to Wolfspeed's Mohawk Valley device fab in New York. Key facility details include: The facility is situated at Siler City, North Carolina, USA. It focuses on Analog / Power, SiC on 200mm wafers. This site represents an estimated investment of $5B. Production at this facility commenced in 2024.
Technology
About Wolfspeed
Wolfspeed is the global leader in Third Generation Semiconductor technology, focusing on Silicon Carbide (SiC) and GaN materials and power devices. Wolfspeed powers future technologies in EVs, renewable energy, and 5G. In 2023 Wolfspeed sold its RF business, including its Research Triangle Park, NC GaN-on-SiC wafer fab, to MACOM for $125M; the fab fully transferred to MACOM in July 2025.