Twelve-layer second-order board

Standard for good 12-layer pcb stackup

A. Ground planes are preferred because of their ability to route signals in a microstrip configuration.

B Ground plane based 12-layer PCB with low ground impedance and low noise.

C. The middle layer between layers is used as the trace for high-speed signals. Even in adjacent planes, the signal layers must be tightly packed with each other.

D. You must place the plane and signal layers in adjacent layers.

E. The large plan and power planes are tightly coupled together.

When choosing a 12-layer stack, our expert design team focused on the following:

 The signal layer should always be adjacent to the plane

 The power plane can be used for the return path of the signal

 Signal layers should be tightly coupled to their adjacent planes

 Determine the return portion of the signal