Nb8511-pcb-mb-v4 — Boardview

“Or,” Maya said, a new thought crystallizing, “the boardview is right, and we’re misreading the layer stack-up.”

“Overlap,” Maya whispered.

She took the mouse and toggled off the top and bottom copper layers. They were left with the two inner layers: green and dark blue. On the boardview, these were data and power planes. She traced the path around C442. The positive via dropped to the inner green layer—the main 3.3V plane. The negative via dropped to the dark blue layer—the main ground plane. Separate, as they should be. nb8511-pcb-mb-v4 boardview

But then she saw it. A tiny, almost invisible annotation in the boardview’s metadata, buried in a user-defined field labeled “REV_NOTES.” She’d scrolled past it a hundred times. This time, she stopped. “Or,” Maya said, a new thought crystallizing, “the