We think a good primer is this multi-layer PCB layout guide which [Rik te Winkel] recently put together. It’s one of the results of his internship experience. One of the major differences with ...

A 50-ohm trace on a typical two-layer board is ... This cut trace for rework would be too deep for a 4-layer PCB So, that all sounds awesome, but surely there must be some disadvantages to four ...