Welded to the ceiling of TSMC’s semiconductor factory in south Taiwan is what looks like the world’s most high-tech, and certainly its most expensive, model railway.
Few humans work on this massive factory floor belonging to the planet’s biggest contract chipmaker. In their place, hundreds of metal containers whoosh along the 43km of tracks hanging from the ceiling.
Every few minutes, one of the robotic containers stops, and the box of silicon wafers packed inside glides down on cables to dock gently at the next step of the assembly line.
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