Lacking entry to EUV, DUV with multipatterning has been essential to SMIC’s manufacturing of 7 nm node chips, including AI chips for Huawei. Regarding DUV machines, government sources told CSIS that the performance thresholds would prohibit machines at or above the performance of the Twinscan NXT 2000i, which means that not all argon fluoride immersion DUV tools will be restricted. Government officials told CSIS that this will likely be most impactful when implemented by U.S. In the case of HBM, Reuters reported that future U.S.