Previously, that 7nm process required an EUV lithography machine from Dutch company ASML, which has also started restricting sales to China. It’s not clear whether older machines or alternative procurement processes were involved with the latest chip production.
When asked about TechInsights’ findings, Huawei was not available for comment.
Huawei’s consumer business revenue has halved under pressure from U.S. sanctions that cut the company off from critical smartphone tech such as semiconductors and Google software.