Wolfspeed Secures Multi-Year Deal to Supply 200 mm Silicon Carbide Wafers to Infineon Across Germany and US

A supply relationship that has spanned roughly two decades is moving up in wafer size.

Infineon Technologies AG and Wolfspeed, Inc. announced on 15 October 2026 that they have entered a multi-year agreement covering 200-millimeter silicon carbide wafers.

The deal shifts the companies' existing cooperation from 150-millimeter substrates to the larger 200-millimeter format, and it was announced jointly from Munich, Germany, and Durham, North Carolina.

Infineon's Strategic Shift to 200-Millimeter Silicon Carbide Production

For Infineon, the timing is tied directly to its own production roadmap.

The semiconductor maker is in the process of converting its silicon carbide manufacturing from 150-millimeter to 200-millimeter technology, and the expanded arrangement with Wolfspeed is intended to feed that conversion with the substrate volume it requires.

Why Infineon sources substrates from multiple suppliers

Infineon pursues a multi-source strategy for silicon carbide substrates, a policy it maintains to preserve supply chain flexibility and consistent quality across its worldwide manufacturing network. The new Wolfspeed agreement widens that supply base at a moment when the company is scaling up a new wafer format.

Alexander Gorski, Chief Operations Officer at Infineon, framed the deal around the reliability of supply.

He said silicon carbide sits at the heart of the energy transition and that securing a high-quality, resilient supply of 200-millimeter substrates is essential to meeting the long-term commitments the company has made to its customers. He added that the agreement strengthens supply chain security for those customers and gives Infineon additional flexibility and scalability to support future growth.

The companies also state that the agreement reinforces Infineon's standing as the global leader in power semiconductors and underpins the supply chain resilience behind its SiC growth strategy.

Where the demand is coming from

Behind the deal sits a demand picture that both companies describe as broadening. Silicon carbide power semiconductors are seeing growing uptake in electric vehicles, renewable energy systems, and the power infrastructure of AI datacenters.

The technology has become a key enabler for electrification and energy efficiency applications tied to global decarbonization, with use cases that include electric vehicle drivetrains, solar inverters, and industrial motor drives. AI datacenters are singled out as an emerging demand driver.

According to the announcement, power conversion efficiency across the datacenter power chain is a direct operating cost consideration for hyperscalers running infrastructure at scale. The switching efficiency and thermal performance of silicon carbide make it a technically suitable choice for specific power conversion stages where silicon reaches its practical limits.

Combined with continued SiC adoption in vehicles and industrial applications, the companies characterize the long-term outlook for high-quality 200-millimeter SiC substrates as strong.

The manufacturing math behind larger wafers

The economics of the transition are central to the agreement's logic. Moving from 150-millimeter to 200-millimeter silicon carbide wafers delivers large manufacturing economies relative to smaller-diameter production, according to the announcement.

A larger wafer diameter increases the usable die area per wafer, brings down per-unit substrate cost, and lifts overall manufacturing efficiency. Infineon's own network reflects that logic.

A key element of the company's manufacturing footprint is its 200-millimeter SiC fab in Kulim, Malaysia, which Infineon describes as a world-class facility designed to be the world's largest and most competitive silicon carbide manufacturing site.

The new Wolfspeed supply agreement is positioned as a direct input into the high-volume ramp at that facility and elsewhere in the network.

Two listed companies with distinct roles

The deal pairs a semiconductor manufacturer with its long-standing substrate supplier.

Infineon Technologies AG trades on the Frankfurt Stock Exchange under IFX and on OTCQX under IFNNY. The company positions itself as a global semiconductor leader in power systems and IoT, states that it drives decarbonization and digitalization through its products and solutions, and reported around 57,000 employees worldwide at the end of September 2025.

Wolfspeed, Inc. trades on the New York Stock Exchange under the ticker WOLF. It is the wafer supplier in the agreement and Infineon's long-standing partner on substrates. The company's base in Durham, North Carolina, is reflected in the joint announcement, underscoring its role in the 200-millimeter silicon carbide substrate supply chain.

What the agreement means for each side

For Infineon, the multi-year commitment secures substrate inputs for its 200-millimeter manufacturing ramp at a time when the company is converting production to the larger format and pursuing a multi-source strategy to protect quality and flexibility across its global network.

Chief Operations Officer Alexander Gorski's comments tie the deal directly to customer commitments and future growth.

For Wolfspeed, the agreement extends a commercial relationship of roughly twenty years into the next wafer generation, aligning the supplier's 200-millimeter substrate output with Infineon's conversion plans.

The joint announcement from Munich and Durham on 15 October 2026 formalizes that alignment, with both companies pointing to electric vehicles, renewable energy, and AI datacenters as the demand drivers that make high-quality 200-millimeter silicon carbide substrates a growing market over the long term.