The US President said he's planning the tariff "in an effort to get the producers to make them in the United States" on Monday, Reuters reports, following plans for a 25% tariff on imports from Canada and Mexico on Feb 1, and other threats directed at imports from the EU and China.
The US produces just 12% of the world's semiconductors, according to a 2020 report by the Semiconductor Industry Association report. Despite that, the US market is responsible for 50.2% of global sales revenue.