Our modern world depends on chips, and our most modern chips depend on complex machines that use a process called extreme ultraviolet lithography. All of these machines are made by one company: ASML. The WSJ’s Ben Cohen met one of the machine’s mechanics and got a rare, behind-the-scenes tour of a factory where one of them operates. He explains the nearly sci-fi tech behind EUV lithography and gives us a peek into the one tool responsible for all the tech in your life.

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