The United States banned the export of 3-nanometer chip production technology on national security grounds. The newly announced export bans include two ultra-wide-gap semiconductor materials, certain ECAD computer-aided design techniques, and pressure ignition techniques. ECAD can be used to design circuits that support gate-around field-effect transistors (GAAFETs), which can be used to produce chips 3 nanometers and below. The Commerce Department’s Bureau of Industry and Security (BIS) did not mention any countries when it announced the ban, but it was clearly aimed at China.
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