Robert Feranec , 04-28-2024, 05:26 AM
I do not normally use 8 layer stackup as it is not very optimal. for example in this case I keep thinking about distances between layer 3-4-5-6, their specific construction (if prepreg is going to be used or core) and if layer 4 is going to be reference layer for layer 3. However, the board will probably work just fine even if the stackup is not perfect ... I am just thinking if this could be somehow improved or what to be careful about, the biggest thoughts go to layer 4 but I don't have any specific ideas what to do with it, because powerplane used as reference plane may sometimes be tricky or not the most optimal.