The U.S. government won't be extending its semiconductor export restrictions on China to "mature chips or legacy chips," per a Nikkei interview with the Assistant Secretary for Export Administration. This means that, for now, chips made on mature nodes (usually defined as 28nm or older) won't be subject to sanctions like processors made with more advanced technology.
At a press event at the U.S. embassy in Tokyo, Thea D. Rozman Kendler, in her capacity as Assistant Secretary for Export Administration, stated there was "no interest in expanding [export restrictions] further to mature chips or legacy chips." This decision comes after the Department of Commerce said it would consider putting sanctions on legacy processors in December over concerns that China was flooding the market with cheap chips the West couldn't compete against.
