Infineon and Wolfspeed Sign SiC Wafer Supply Agreement - TimesTech

Infineon's long-term SiC substrate agreement with Wolfspeed is not a procurement event—it is an option pricing on 800V EV power module capacity. Technical cascade: Wolfspeed's 6-inch capacity is already constrained. Infineon's volume commitment will squeeze STMicroelectronics and Rohm's substrate access in the 2025–2026 window, pressuring their SiC MOSFET delivery cycles. More critically, Infineon gains early access to crystal-growth parameter optimization, building an epitaxy process moat. Compliance exposure: Wolfspeed operates under CHIPS Act friend-shoring provisions and BIS export controls. If Infineon's end-customers include Chinese OEMs, the supply chain faces elevated friction in export-licensing reviews. Market dynamics: The real variable is China. SICC and TanKeBlue have pushed 6-inch substrate prices below $300/wafer. Infineon choosing Wolfspeed over Chinese suppliers is essentially paying a geopolitical compliance premium. Expect Rohm and ST to accelerate Chinese substrate integration to compress costs—splitting the SiC market into compliance-premium and cost-first tracks. 12–24-month outlook: Wolfspeed will leverage the Infineon endorsement to accelerate 8-inch customer conversion. Chinese substrate makers will be forced to extend their price war to 8-inch, pushing global SiC materials into a dual-track pricing regime.