(Reuters) -The U.S. is planning to push chipmakers to match the volume of semiconductors that their customers currently import from overseas providers through domestic production, or pay a tariff, the Wall Street Journal reported on Friday. President Donald Trump has doubled down on his efforts to reshore semiconductor manufacturing, offering exemptions from tariffs of roughly 100% on chips to firms that produce domestically. Companies that fail to sustain a 1:1 domestic-to-import ratio over time would fa ...