Mercedes to source SiC semiconductors from Wolfspeed

Mercedes-Benz has entered into a strategic partnership with Wolfspeed to supply silicon carbide power semiconductors. Wolfspeed’s SiC semiconductors will be integrated by Mercedes-Benz into drive systems of the future platforms for electric cars.

Wolfspeed does not disclose the agreed supply volumes or financial scope of the strategic agreement in the statement. The advantages of silicon carbide semiconductors compared to components made of pure silicon are well known: They work more efficiently, which in itself reduces energy consumption (or losses). Since they also generate less waste heat, smaller and lighter cooling systems can be installed, which increases the savings effects. The end result is longer ranges and shorter charging times in electric cars.

Wolfspeed will supply Mercedes-Benz from its production facilities in Durham (North Carolina) and Marcy (New York). The factory in Marcy went into operation in 2022. 200 mm wafers can be produced there. The planned plant in Durham is expected to expand the company’s SiC production capacity by more than ten times. The first phase of construction is expected to be completed in the 2024 financial year.

According to Wolfspeed’s statement, Mercedes Benz, as a “leading provider of luxury vehicles”, understands the need for superior performance. Using its own semiconductors, Mercedes plans to “put some of the most efficient electric vehicles on the road”. The Stuttgart-based manufacturer is planning to introduce new electric platforms from 2025. Technical details about the platforms, such as voltage levels, are not yet known.

“Based on a long history of technical cooperation between our companies, we have now selected Wolfspeed as one of our key partners for future silicon carbide components, securing the preferred long-term supply, technology and quality of this critical semiconductor component for our electrification offensive,” said Gunnar Güthenke, head of purchasing and supplier quality Mercedes-Benz. Wolfspeed CEO Gregg Lowe adds, “We continue to invest in our manufacturing capabilities to support a steeper demand curve for silicon carbide devices that not only improve electric vehicle performance and drive greater consumer adoption but also support the sustainability efforts of global automotive leaders like Mercedes-Benz.”

Jaguar Land Rover will also reportedly rely on SiC semiconductors from Wolfspeed in its next-generation electric car. A partnership to this effect between Wolfspeed and JLR was announced in early November. General Motors is also one of Wolfspeed’s customers. The US carmaker uses Wolfspeed’s silicon carbide components in the integrated power electronics of its “Ultium Drive” units – for both 400 and 800 volts.

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