The news
Frank Rohmund, chief executive of Zeiss SMT, said China will need fifteen years to develop its own extreme-ultraviolet lithography machines. He made the remark during an interview at Semicon Taiwan.
Context
Zeiss SMT supplies the high-precision optics that sit at the core of ASML’s EUV scanners. Those scanners are the only tools currently able to pattern the smallest features on leading-edge chips. Export controls already limit shipments of the most advanced systems to Chinese customers. Rohmund’s timeline therefore describes both a technology shortfall and the effect of those restrictions.
The single source for the statement is a Bloomberg Technology interview conducted on the sidelines of the industry event. Rohmund spoke with Stephen Engle and addressed both the technical timeline and the impact of further export rules. No other on-the-record comments from Zeiss or ASML executives appear in the available material.
Details
Rohmund framed the fifteen-year estimate as a realistic assessment of the engineering work still required. He noted that additional export controls would not halt Chinese progress but would instead speed domestic innovation. The comments were delivered on the sidelines of the industry event in Taiwan and reported by Bloomberg Technology.
The Zeiss unit builds the projection optics and illumination systems that enable ASML’s EUV tools to achieve the required resolution. Without equivalent optics, any Chinese attempt at EUV remains incomplete. Rohmund’s statement therefore points directly at the optical bottleneck rather than at wafer stages or light sources alone.
The interview contains no numerical breakdown of development stages, no mention of specific Chinese research institutes, and no timeline for supporting technologies such as light sources or photoresists. The fifteen-year figure stands as the sole quantitative claim.
Why it matters
The fifteen-year horizon sets a concrete benchmark for how long Chinese foundries may operate without the latest process nodes. Chip designers inside China will continue to work on older equipment, while competitors elsewhere move to successive EUV generations. That gap affects not only memory and logic production but also the downstream supply of advanced packaging and specialty components that rely on the same nodes.
Rohmund’s second observation—that tighter controls accelerate Chinese efforts—adds a practical limit to what export policy can achieve. If restrictions prompt faster local investment, the net result may be a parallel supply chain that reaches parity sooner than the fifteen-year mark in some supporting technologies. Companies that depend on Zeiss or ASML components must therefore plan for sustained segmentation rather than a temporary delay.
The optics bottleneck identified by Rohmund remains the clearest single constraint. Any timeline shorter than fifteen years will require visible progress on that specific element. Hardware teams outside China gain a clearer planning window: they can assume continued access to current-generation tools while tracking whether Chinese programs close the optics gap faster than the stated schedule. Policymakers receive an explicit trade-off signal: further restrictions carry the risk of compressing the very timeline they aim to extend.
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Sources:
[
{
"publisher": "Bloomberg Technology",
"title": "ZEISS SMT CEO: China 15 Years Behind in Top Chip Tools",
"url": "https://www.bloomberg.com/news/videos/2026-09-02/zeiss-smt-ceo-china-15-years-behind-in-top-chip-tools-video",
"published_at": "2026-09-02T23:04:00.000Z",
"summary": "Frank Rohmund, CEO of Zeiss SMT, a key supplier to ASML's EUV lithography machines, sayd he expects that Beijing will need 15 years to develop EUV lithography machine, and additional export controls will only accelerates innovation in China. He speaks with Bloomberg's Stephen Engle on the sidelines of Semicon Taiwan. (Source: Bloomberg)"
}
]
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