- Lead. A Chinese state-backed consortium linked to Huawei and SiCarrier began mass production of immersion deep ultraviolet (DUV) lithography machines on July 27, delivering the first domestically produced chipmaking tools that Western export controls were specifically designed to prevent China from acquiring.
- Fact. ASML shares fell up to 7% on the news; Applied Materials, Lam Research, and KLA also declined. The Nasdaq semiconductor index shed as much as 6% over two sessions — its fourth consecutive losing day. Five units are planned for delivery to SMIC, Hua Hong Semiconductor, and CXMT in 2026, rising to roughly 20 in 2027, compared to ASML’s roughly 130 immersion systems shipped annually.
- Stake. The machines target 28nm chips with single exposure and can reach 7nm–5nm nodes via multiple patterning — still behind ASML in throughput, overlay precision, and reliability, but the transition from prototype to volume production marks a qualitative shift in China’s position in the semiconductor supply chain.
The firm behind the milestone is Shanghai Yuliangsheng Technology, a state-backed semiconductor equipment company with connections to Huawei and SiCarrier, the latter an initiative to build out China’s domestic chip tooling supply. First deliveries of its immersion DUV lithography machine — the truck-sized, precision optical system that exposes circuit patterns onto silicon wafers — are planned for SMIC, Hua Hong Semiconductor, and ChangXin Memory Technologies (CXMT) in 2026. SMIC began testing the machines as far back as September 2025, according to reporting by Tom’s Hardware, with full mass production confirmed this week.
The machines are not on par with ASML’s best immersion systems — the Dutch company’s Twinscan NXT series delivers significantly higher throughput, superior overlay accuracy, and proven reliability at scale — but the production milestone matters for a reason separate from near-term performance: it signals China can manufacture, not merely reverse-engineer or stockpile, advanced lithography equipment domestically. For context on ASML’s own pricing dynamics amid these pressures, see ASML Eyes 10% Price Hike on Chip Tools as TSMC Resists.
What the Machines Can and Cannot Do
Immersion DUV lithography uses water between the lens and wafer to shorten the effective wavelength of light, enabling finer circuit patterns. China’s domestically produced version targets 28nm geometries in single-exposure mode; via multi-patterning — overlaying multiple exposures to build up finer features — the same machines can theoretically produce chips at 7nm or 5nm equivalent density. That multi-patterning approach is more expensive, slower, and less yield-efficient than ASML’s EUV (extreme ultraviolet) machines, which achieve the same feature sizes in a single pass. Export controls on EUV equipment remain in place; this week’s news concerns the DUV layer, which the Netherlands and United States tightened restrictions on in 2023.
A Test of Export-Control Effectiveness
The move to mass production reignites a debate that has run since 2022 about whether export controls slow China’s semiconductor development or merely redirect it. Critics of the controls argue that denial of access accelerates China’s investment in domestic alternatives; defenders argue the resulting Chinese tools are still years behind in performance, maintaining a meaningful capability gap. The five-unit delivery schedule in 2026 — against ASML’s roughly 130 per year — suggests the gap remains large in volume terms, but the trajectory is now clearly upward. Fortune noted that analysts see the development as a signal that the Western semiconductor equipment bloc needs to reassess what “export-controlled” means when the target country builds its own version.