The U.S. is planning to ask chipmakers to manufacture at home as many semiconductors as their customers import, aiming to curb reliance on overseas supply, the Wall Street Journal reported on Friday. The Trump administration would levy tariffs on firms that do not sustain a 1:1 ratio over time, the report said, citing people familiar with the plan. The plan stems from President Donald Trump's remarks last month that tech firms manufacturing domestically could avoid roughly 100% tariffs on semiconductors.