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US to award $389 million in R&D funds for power semiconductors, critical materials

By Thomson Reuters Oct 22, 2026 | 8:02 AM

By David Shepardson

WASHINGTON, Oct 22 (Reuters) – The US Commerce Department said on Thursday it plans to award $389 million in research and development funding to four companies working on power semiconductor devices and critical materials to boost technologies like ​commercial fusion.

As a condition of funding, the US government will receive minority, ‌non-controlling and non-voting equity stakes, the department said.

In recent months, it has awarded 19 R&D grants to semiconductor firms from a $10 billion fund approved by Congress in 2022. Commerce Secretary Howard Lutnick said in a statement the awards will “accelerate American semiconductor innovation to enhance our domestic energy and power resources.”

Reuters ‌first ​reported the new funding. The department said it had ⁠signed letters of intent to ⁠provide four new awards:

• Washington-based Helion will receive up to $175 million to develop high-voltage power semiconductors and advanced energy power modules in fusion power generation. The semiconductors will power and use energy from magnets driving Helion fusion generators. Helion said the award ​will be accompanied by $50 million in new private investment funds. “Building fusion power plants at scale requires us to accelerate the development of technologies like semiconductors that are critical ⁠to making fusion possible,” said Helion CEO David ⁠Kirtley.

• Massachusetts-based Commonwealth Fusion Systems will receive up to $85 million to develop ​semiconductors for radio-frequency plasma heating, power electronics, fusion diagnostics, and radiation-hardened electronics.

• Commonwealth said the ​funding will help develop semiconductor technologies for robotic maintenance systems. “These innovations ‌will be a vital part of our global effort to deploy commercial fusion,” Commonwealth CEO Bob Mumgaard said.

• Vertical Semiconductor will receive up to $73 million to advance its vertical gallium nitride power semiconductors for use in AI data center racks. The company, a startup spun out ⁠of the Massachusetts Institute of Technology, said the funding will help accelerate R&D of next-generation power transistors and speed domestic production of this technology to drastically improve efficiency and power ⁠density for AI data ‌centers and critical energy infrastructure.

• Sibelco North America will receive up ⁠to $56 million to develop next-generation purification for ultra-high-purity quartz used ​in ‌the semiconductor supply chain. Sibelco North America, part of Belgium ​parent Sibelco, said ⁠the funding for key quartz components in semiconductor manufacturing will be used for next-generation leaching technologies and a demonstration facility to support testing new products in North Carolina. Sibelco CEO Hilmar Rode said announcement “represents a significant step for Sibelco and reflects the importance of high purity quartz within the semiconductor manufacturing supply chain”

(Reporting by David Shepardson; Editing by Andrew ​Cawthorne and Philippa Fletcher)