Insights

DFM Practical Topic 2 - PCB Design Red Lines: Line Width, Spacing, and Via Ring Technology White Paper

Driven by AI servers and automotive electronics, PCB design has transformed from simple "connect-the-dots" to a precise physical game. For Layout Engineers, the challenge in 2025 is: how to hold the "red line" of yield while keeping costs under control. This report focuses on three key areas: 3mil trace width, annular ring calculation, and teardrop design, analyzing why these parameters determine the life or death of a product.