U.S. government officials recently expressed concern to ASML, the Netherlands-based maker of semiconductor manufacturing equipment, that one of the company's most advanced photolithography systems might be present in China in apparent contravention of export controls. The officials raised the issue directly with company executives, the matter centering on the possible operation of an extreme ultraviolet (EUV) lithography system in China.
According to the exchanges, U.S. Commerce Secretary Howard Lutnick informed ASML leadership that Washington was worried an EUV machine could be operating on Chinese soil. ASML responded to the suggestion by firmly denying that it has ever shipped an EUV system to China and by stating that no EUV systems are located there.
Beyond the specific claim about an EUV machine potentially operating in China, senior U.S. officials also made allegations that ASML may have exported equipment associated with EUV tools to China. ASML disputed those accusations as well.
In an effort to rebut the concerns raised by U.S. authorities, ASML circulated documents in Washington intended to show there is no indication that any of its EUV systems are operating in China. The company has maintained that neither the machines nor the relevant systems are present in that country.
The exchanges highlight a point of contention between U.S. officials and ASML: U.S. authorities have voiced suspicions about the location and potential export of highly advanced lithography technology, while ASML has denied both the shipment and on-the-ground presence of its EUV equipment in China and has sought to document that position for U.S. officials.
Summary
U.S. officials raised concerns that an ASML extreme ultraviolet lithography system could be operating in China in violation of export restrictions. ASML denies shipping EUV machines to China and says none are located there. U.S. officials also alleged potential exports of equipment related to EUV tools, which ASML rejected and attempted to address with documentation circulated in Washington.
Key points
- U.S. officials told ASML there is concern an EUV lithography system might be operating in China.
- ASML says it has never shipped an EUV machine to China and that none of its EUV systems are located there.
- Senior U.S. officials alleged exports of equipment related to EUV tools; ASML denied these allegations and provided documents to U.S. officials asserting no indication of EUV systems in China.
Risks and uncertainties
- Allegations of a possible EUV system operating in China raise concerns about potential violations of export restrictions affecting the semiconductor equipment sector.
- Disputed claims over exports of equipment related to EUV tools introduce uncertainty for regulatory and trade oversight of high-end chipmaking technology.
- Conflicting positions between U.S. officials and ASML on the presence of EUV systems in China create unresolved questions about verification and compliance.