We think a good primer is this multi-layer PCB layout guide which [Rik te Winkel ... there are additional choices when it comes to multi-layer boards. #1 is a through via connecting all of ...

Typical numbers are from 1.5 x to 2 x the cost for boards of equal ... another reason to stick power planes in there. Routing a four-layer PCB can involve some new twists, requiring a little ...