Around 12% of all microchips manufactured globally are made in the United States. Despite that, 48% of the microchip market share belongs to the United States. How is that the case?

It's a breakthrough called extreme ultraviolet lithography, and it's how the most advanced microchips in the world are made. The kind of chips powering the latest AI models.

Levies on certain U.S.-made microchips have been dropped, importers say. Meanwhile, China denied President Trump’s claims that talks to reduce tariffs are happening.

ROB SCHMITZ, HOST: So there's this new, next-generation way to make microchips. It's behind the most advanced chips in the world. Its name? Extreme ultraviolet lithography. Planet Money's Jeff Guo ...