The US may push a near-total ban on ASML deep ultraviolet (DUV) lithography sales and servicing to China, according to TrendForce. The reported move would extend beyond the existing EUV restrictions to cover DUV systems, including those already installed in Chinese fabs.
Key facts
- US may ban ASML DUV sales and servicing to China
- Ban would extend beyond existing EUV restrictions
- Servicing ban would strand China's installed DUV base
- China domestic lithography push cited as catalyst
- ASML has not publicly commented on the report
The US is reportedly preparing a near-total ban on ASML's deep ultraviolet (DUV) lithography sales and servicing to China, according to TrendForce. The move would mark a significant escalation from the current export controls, which already bar ASML from selling its extreme ultraviolet (EUV) machines to China but have left DUV sales largely intact.
The reported ban would target the mature-node DUV systems that China's fabs rely on for legacy chips. Crucially, it would also cover servicing of already-installed DUV machines, which would strand a significant portion of China's existing lithography capacity. ASML has not publicly commented on the reported near-total ban as of this writing.
Key Takeaways
- US may push near-total ASML DUV ban on China sales and servicing, per TrendForce.
- Would extend beyond EUV curbs and strand installed base.
Why servicing is the sharper edge
The servicing component is the more consequential piece. China's installed base of ASML DUV systems represents years of accumulated capacity; cutting off maintenance and spare parts would degrade those tools over time, effectively decommissioning them without a single new export ban. This mirrors the pattern the US applied to Huawei's access to advanced chips, where the denial of servicing and upgrades proved as damaging as the initial sales ban.
China's domestic push as catalyst
China's domestic lithography push appears to be the catalyst, per TrendForce's analysis. Beijing has been accelerating homegrown DUV and EUV development, with state-backed efforts targeting self-sufficiency in semiconductor manufacturing equipment. The reported US move would aim to preempt that push by denying Chinese fabs access to the foreign tools they still depend on, forcing an earlier reliance on domestic alternatives that remain unproven at scale.
Scope and uncertainty
The exact scope of the reported ban remains unclear. TrendForce does not specify which DUV models would be covered, whether the ban would apply retroactively to installed systems, or what timeline the US is considering. The company also does not name the US agencies involved or cite specific policy documents. What is clear is that the direction of travel is toward tighter controls, not looser ones.
What to watch
Watch for a formal US policy announcement or executive order specifying which DUV models fall under the ban and whether servicing grandfather clauses exist for existing installations. Also track ASML's next earnings call for revenue guidance revisions tied to China exposure, and any retaliatory moves from Beijing on rare-earth exports.
Source: news.google.com
