A Chinese manufacturer has unveiled its own prototype extreme-ultraviolet (EUV) laser source, according to a report by Heise – a significant step in Beijing's push to build the entire chip lithography chain domestically. EUV lithography is the technology behind every chip manufactured at seven nanometers and below, and today exactly one supplier, based in the Netherlands, ships production-grade EUV machines.
What the prototype represents: The EUV light source is both the heart of the machine and its most complex component – it must generate plasma under extreme conditions, at high power, and keep running reliably for years. A working prototype is a proof of capability, not a product. The gap between a laser prototype and a scanner fit for high-volume manufacturing is typically measured in years, often a decade or more.
What's still missing: Heise's report does not name the manufacturer or publish detailed performance figures, and it remains open whether the prototype already meets the power and stability levels production requires. The context is clear, though: the unveiling comes amid tightening export restrictions on both sides. As long as the West withholds cutting-edge lithography gear, Beijing has strong incentives to build every link of the chain itself – and this prototype signals the program is making progress.
For the industry, the question is whether this eventually yields a viable second source of EUV technology. Until then, the Dutch supplier's monopoly stands – but this prototype is a clear signal that it can no longer be taken for granted.
