Computer chips are so widespread now that we now take them for granted. They're pretty much everywhere... well, at least not in the milk... yet. But it's pretty common to have highly advanced processors with us all the time. The industry churns out tonnes of all purpose processors not each year, but each DAY, and we often don't stop to think all the work that goes into making them, and also how the technology to make them has progressed over the years.

This video explains in a very simplified fashion how usually a microprocessor is made:



This other video explains a lot more in depth all the steps that go into making a processor. Take into account that the process is highly controlled and extremely specialized, and that, like i said, tonnes of processors are made each day:



And finally, while all this process may seem alien to mere mortals, if you are wiling to spend time and a lot of money, you can learn how to make them, you can make your own chips in your garage, provided you have a pocket big enoug to spend on all the machines and materials necesary, here this guy explains how he makes his own chips at his garage laboratory: