By Marcus Bennett

Wolfspeed has signed a $1.5 billion unconditional loan with the Defense Department's Office of Strategic Capital (OSC), the North Carolina-based silicon carbide wafer maker announced Wednesday. The agreement converts an earlier conditional letter into deployable funding, with an initial $600 million installment available within the draw window.

The capital backs Wolfspeed's wide-bandgap semiconductor program — chip materials that switch power faster and tolerate higher voltages than standard silicon — across three production states. Brad Kohn, the company's executive vice president, chief legal and global affairs officer, identified the affected footprint.

Plans target additional volume at:

• The Mohawk Valley Fab in Marcy, New York
• The Research Triangle Park facility in Durham, North Carolina
• The company's Arkansas site

"The conditional loan commitment letter reflects Wolfspeed's strong position in the silicon carbide and wide bandgap semiconductor markets, and reflects the strategic importance of secure, domestic silicon carbide and gallium nitride supply chains," Kohn said in an emailed statement.

What does this change for Wolfspeed's book of business?

The funding lets the company upgrade its gallium nitride (GaN) epitaxy line — the thin-film deposition process that defines a power device's electrical performance — for new communications infrastructure and electronic warfare systems. It also finances ionizing radiation-resistant silicon carbide and gallium nitride products. The balance funds the establishment, expansion, or onshoring of low-voltage and high-voltage power device production at the three named sites.

These wide-bandgap chips move electrons faster and handle larger electric fields than conventional silicon. DARPA, the Defense Advanced Research Projects Agency, treats them as critical to military systems such as the AN/TPY-2 missile defense radar built by RTX subsidiary Raytheon. The same properties support high-performance propulsion, energy weapons, drones, electronic warfare, radars, and missile defense applications per DOD's release.

The loan carries a 30-year maturity and a 36-month draw window, according to Wolfspeed's securities filing. OSC will deliver funds in up to four installments ranging from $200 million to $400 million beyond the opening $600 million payment. That structure gives the chipmaker flexibility on deployment timing, which matters for matching capacity rollouts to capital-equipment delivery schedules.

OSC moved on a parallel track the same week. The office committed $150 million to quantum-computing builder PsyQuantum on Thursday, drawing from a separate $350 million quantum initiative.

The Pentagon manages that program through the Office of the Undersecretary of Defense for Research and Engineering. It targets chemistry and materials-science applications intended to accelerate development of "more lethal" weapons, platforms, and supporting capabilities at lower unit cost.

The Wolfspeed deal aligns with the White House Office of Science and Technology Policy's "Golden Age of Science" framework, which calls for rebuilding the U.S. industrial base through targeted R&D investment. For tier-one defense electronics suppliers, the read-through is direct: federal capital is flowing into domestic wide-bandgap capacity, and competitive pressure on incumbent vendors will follow once that new volume reaches customers.

What to watch next

Watch the timing of Wolfspeed's first $600 million draw and the announced volume ramp at Mohawk Valley Fab. Follow-on defense contracts that explicitly cite the upgraded GaN epitaxy line will confirm capacity is reaching buyers. Readers tracking power-electronics sourcing should also monitor competing silicon carbide suppliers for matching capacity announcements or price moves in the next two quarters.