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HDI Any-Layer Explorer

1st → 5th order any-layer · see where microvias land

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HDI (High Density Interconnect) boards use laser-drilled microvias to connect layers with far finer pitch than mechanical drills. Higher order means more sequential laminations, denser routing, and cleaner signal paths.

Select order

2nd order

L1–L2 and L2–L3 staggered. Standard premium HDI.

FQC ceiling: 5th-order any-layer up to 16 layers

Where FQC sits

·Most Tier-2 fabs: 2nd-order max
·Ibiden / Unimicron / AT&S: higher orders for IC substrate
·FQC: 5th-order any-layer rigid (production spec)

Spec my HDI board →

First Quality Circuit

Precision PCB manufacturing from Thailand. A subsidiary of Sihui Fuji Electronics (300852.SZ).

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