What is the best four-layer PCB stackup for signal integrity?
Which four layers stackup is more favourable for signal Integrity when Designing your PCB board.
Signal, Ground, Power, Signal
or Signal, Ground, Ground, Signal.
3 Replies
Majorly we can't define one as overall best, but it's dependent on your application. Mostly using the second stackup sig gnd gnd sig is very good, because it creates a good return current path for both the top and bottom layer signals.
What application is the board you're designing
Solution
The best 4-layer PCB stack up is considered to be
SIG+PWR
GND
GND
SIG+PWR
Sometimes it's difficult to connect all tracks using only two layers. Especially in multi power domains designs.
thanks