AI PCB Material Wars: Q-glass Wins

zephyr_z9 · x · 2026-07-13

This repost discusses material choices for high-layer-count AI circuit boards. The author argues that Q-glass + M9 is the mainstream direction for high-layer AI boards, while PTFE faces limitations due to drilling and lamination difficulties.

It also notes that PTFE has already forced some manufacturers to adjust their PP formulations. Looking ahead to 2027, next-generation LPUs adopting large-scale 52-layer designs could significantly drive up Q-glass demand, whereas PTFE will likely remain confined to low-layer topologies.

Original post →

More from Infra

Infra channel →