How to design a 20 layers HDI PCB? This guide covers stack-up, design, manufacturing, and why our 19+ years of expertise make us your ideal partner. What Is A 20 Layers HDI PCB? A 20 layers HDI PCB (High-Density Interconnect Printed Circuit Board) is a 20-layer PCB that utilizes microvia technology to achieve high-density wiring. … [Read more…]