CHIPS ARE HARD: The Semiconductors Tariff Yo-yo. “You can’t just take an existing building and turn it into a fab, it has to be specially built from the ground up with exacting standards for cleanroom air filtering, concrete slab level uniformity, etc. You need extremely exacting air purity handling equipment, as well as a system for running de-ionized water throughout the plant. Then you need to purchase, install, bring up and qualify all the hundreds of pieces of semiconductor equipment necessary to run a modern fab. And 2-3 years is probably the lead time to get an ASML EUV stepper, if you’re going to be building a cutting edge fab.”