There are still plenty of people in the fab. They're not usually running product around in a modern automated fab, but there are always equipment issues to work through. When you have fleets of multiple tens of tools, it's always an exercise to keep them matched and in-line with each other. The majority of modern cleanrooms are "ballroom" style, where the tools all sit out in the open. Each tool has a class 1 mini-environment inside which keeps the product clean. Outside the tools is a cleanroom, but it's not as clean as inside.

Remote access has helped out a lot, but the process engineering folks will still spend a bunch of time every week on the line. The equipment engineering folks will spend time every day on the line working on things.