When you send off your Gerber files to have your latest board made you will be shipped some shiny new board in a few weeks. The process of creating the boards is very time consuming, the video above goes through the many steps of how a 4 layer PCB is created. Most boards are 2 layer but it is interesting to see how the inner layers of the 4 layer boards are created. It is hard to believe that our boards can be processed through this many steps and be flawless when they are completed since a small mistake on any of these steps would have a good change of damaging the entire thing.