China Mass-Produces DUV Lithography Machines; Analysts Say ASML's Position Hard to Shake in Short Term
Alina Collins
An unnamed Chinese firm has begun mass-producing immersion DUV lithography tools, sending ASML shares down more than 8% in a single session; analysts say yield rates and production scale remain the real bottlenecks, keeping this breakthrough from reshaping the competitive landscape anytime soon.
What actually happened?
An unnamed Chinese company has started mass-producing immersion DUV lithography tools — machines that etch circuit patterns onto silicon wafers using deep-ultraviolet light — and plans to deliver units this year to SMIC and CXMT, according to *The Information*.
DUV lithography is the backbone of mature-node chip production. Until now, only ASML could mass-produce these machines. This means → China has crossed from zero to one in this critical equipment link.
ASML shares fell more than 8% on Monday before narrowing the decline to roughly 1.8% on Tuesday.
Why are analysts urging caution?
Nick Patience, AI lead at Future Research Group, told CNBC: "Having a usable tool is not enough — you need yield rates at least on par with ASML." Yield — the share of good chips per batch — directly determines cost and customer confidence.
He added that ASML's reliability was built through years of iterative refinement, a foundation the Chinese entrant does not yet have.
In plain terms = building the machine is step one; consistently producing qualifying chips at scale is the real gate.
How wide is the capacity gap?
The Chinese firm targets just 5 units this year and roughly 20 units by 2027.
ASML, by contrast, plans to produce about 130 immersion DUV tools in 2026 and expand output by another 30% in 2027.
This means → even by 2027, China's output would be roughly one-tenth of ASML's. The SemiAnalysis team put it bluntly: "Scaling the tool's own production is the most underestimated challenge."
How much does this really hurt ASML?
ASML posted €6.6 billion in net system sales in Q2, with China accounting for about 14% — roughly €924 million.
But export controls already bar ASML from selling certain immersion DUV tools to China. SemiAnalysis noted: the Chinese tool "replaces revenue ASML had already lost to export controls" — it is not taking share from ASML's current order book.
Stephane Houri, head of equity research at ODDO BHF, told CNBC that China's capability likely extends only to the low end and is unlikely to dislodge ASML's market dominance.
What to watch next?
SemiAnalysis outlined five hurdles: tool performance, production scale-up, fleet-wide consistency, the surrounding ecosystem, and cost competitiveness versus depreciated ASML tools — each one stacked against the Chinese entrant.
In plain terms = a lithography tool does not operate in isolation; it needs an entire support ecosystem to run on a production line, and China is still early-stage across those layers.
Whether mass-production yield can close the gap with ASML is the key proof point for judging if this breakthrough truly changes the game.
Content is for reference only, not financial advice.