Part of the day: Copper-clad laminate & PCB materials

Assembled by the nightly build from this catalog’s own entry for Copper-clad laminate & PCB materials (4.06, Layer 4 — Servers, racks & integration). The tables below are rebuilt every night; first published 2026-09-22, refreshed 2026-09-24.

The laminate — resin, copper foil and glass-cloth reinforcement — that high-layer-count boards (4.05) are fabricated from.

This part sits one step upstream of the PCB fabricators (4.05): copper-clad laminate suppliers combine resin systems, copper foil (4.06a) and glass-cloth reinforcement (4.06b) into the sheet material that board makers etch and stack into finished PCBs. Low-loss, low-dielectric-constant resin systems matter specifically for high-speed digital signaling, which is why they show up by name against this part. AI boards’ higher layer counts and higher signal speeds push demand toward these low-Dk, low-loss grades rather than commodity FR-4 laminate, and that mix shift matters more to this tier’s economics than raw board volume does. For investors, the laminate tier is a materials-science-driven part of the chain: qualification of a new resin or glass-cloth grade for a given board design takes time, so incumbency and long design-in relationships carry real weight, and pricing tends to track the mix shift toward higher-spec grades rather than unit volume alone.

AI delta: Higher board layer counts and faster signaling push demand toward low-loss, low-dielectric-constant laminate grades instead of commodity material, shifting the mix even where total board area doesn’t grow as fast.

Who makes it

The full entry — sub-categories, news, videos and sources — lives on the Copper-clad laminate & PCB materials page.