A journey through the hyper-political world of microchips

From the raw materials required to the machines that make them, every part of the chip supply chain is fiercely contested in the global race for tech supremacy

A small town in the Netherlands hosts the only factory that produces the only chip-making machines that generate a type of light found nowhere naturally on Earth: extreme ultraviolet, a light emitted by young stars in outer space.

This light, known as EUV, is the only way to make one of the world's most valuable and important technologies at scale: cutting-edge semiconductor chips. The factory is forbidden from selling its EUV machines to China.