xLight scores $150M US Commerce LOI to build world's most powerful free-electron lasers for next-gen chip lithography

Summary

xLight, a semiconductor laser startup, has received a Letter of Intent from the US Department of Commerce valued at $150 million to develop what the company describes as the world's most powerful free-electron lasers for next-generation chip lithography. The LOI follows more than two years of technical, commercial, and financial due diligence by Commerce, providing the regulatory foundation for the administration to move with unusual speed.

Nicholas Kellis, serving simultaneously as CEO and CTO, positions xLight's core thesis around commercializing laser technology already proven inside national laboratory light sources over decades. Rather than building from scratch, the company applies proprietary IP to adapt mature, field-tested systems for semiconductor manufacturing use cases, a strategy Kellis argues reduces both technical risk and capital requirements relative to comparable deep-tech plays.

The immediate use of proceeds centers on completing a working prototype, one Kellis explicitly frames not as a proof-of-concept but as a production-credible demonstration. The target milestone is connecting the laser system to a scanner, exposing wafers, and validating real-world lithography performance. Fab customers are already engaged in parallel, with the intent to move directly into first commercial system production once the prototype clears.

Capital intensity sits in the "few hundreds of millions of dollars" range for full facility buildout, with the majority of spending going into hardware and infrastructure rather than headcount. Kellis, who previously built facilities in quantum computing, characterizes the capital profile as heavy relative to software but manageable compared to quantum or fusion ventures.

Pat Gelsinger, the former Intel CEO, is advising xLight and holds a formal relationship with the company. Kellis says Gelsinger sought xLight out independently while exploring venture opportunities post-Intel, drawn specifically by the lithography angle and its relevance to re-shoring leading-edge semiconductor manufacturing to the US. Gelsinger is described as providing both strategic credibility and direct executive coaching to Kellis.