The $400 million machine powering the future of chipmaking

Jos Benschop is climbing a ladder to get to the top of his newest machine.

It’s a bit of a schlep.

The contraption is the size of a double-decker bus—more than 150 tons of gleaming precision-milled aluminum covered in thousands of snaking tubes, colored cables, and pressurized tanks.

From the ground, it looks like a…