How are Microchips Made

How are Microchips made?  Have you ever wondered how these microchips are made?

https://www.youtube.com/watch?v=dX9CGRZwD-w

Integrated Circuits, CPUs, GPUs, Systems on a Chip, Microcontroller Chips, and all the other different types of microchips are the brains of all the devices and technology we use daily.