PCB Materials & Stackup

Controlled impedance PCB design depends on more than a calculator result. This guide covers stackup planning, trace geometry, material assumptions, fabrication notes, and the handoff details that help PCB manufacturers quote and build signal-sensitive boards with fewer surprises.

This practical multilayer PCB design guide explains when extra layers are worth adding, how to plan stackup and return paths, what via and escape routing tradeoffs matter, and how to send a cleaner package to your PCB manufacturer.