# pcb-surface-flatness-stackup-copper-balance

_Published: 2026-09-17_

[https://www.bestpcbs.com/blog/wp-content/uploads/2026/09/pcb-surface-flatness-stackup-copper-balance.jpg](https://www.bestpcbs.com/blog/wp-content/uploads/2026/09/pcb-surface-flatness-stackup-copper-balance.jpg)