SEMICONDUCTORS8 min readMEMBERS

China’s DUV Push Is Reaching the Hardest Part: Industrial Scale

Building a scanner is only the first step. Reliability, optics, overlay accuracy and fab qualification determine whether domestic lithography can matter commercially.

Published Sep 21, 2026Updated Sep 21, 2026

Semiconductor manufacturing cleanroom with advanced processing equipment — Lithography systems sit inside a much larger manufacturing stack where precision, uptime and process repeatability determine commercial value.

Deep-ultraviolet lithography is one of the hardest machines in modern manufacturing. A scanner must repeatedly project extremely small patterns across wafers while controlling vibration, optics, positioning and process variation at extraordinary precision.

That is why a domestic Chinese DUV system would matter even before it matched ASML’s most advanced tools. It would give Chinese fabs another path to reduce dependence on imported equipment for a wider range of nodes.

But the leap from prototype to production is much larger than it appears in a headline.

Semiconductor wafer processing equipment — Every lithography step must integrate with coating, etching, deposition, metrology and inspection across the fab.

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China’s DUV Push Is Reaching the Hardest Part: Industrial Scale

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