8-Layer PCB
8-Layer PCB
For Serious Hardware
When your FPGA, SoC, or multi-radio design outgrows 6 layers. Full impedance control, multiple reference planes, and room to route without compromise.
[ Photo: 8-layer PCB board ]
Recommended 8-Layer Stackup
[ Photo: 8-layer cross section ]
[ Photo: BGA breakout routing on 8L board ]
[ Photo: impedance test results 8-layer ]
8-Layer Specifications
FAQs
8-Layer Questions
When should I go to 8 layers?
When you need: 4+ signal layers with continuous reference planes, FPGA/SoC with 400+ pins, DDR4 with matched lengths, or multiple power domains requiring isolated planes.
How much does 8-layer cost?
Roughly 2x the cost of 4-layer for similar board size. Exact pricing depends on your specs — use our instant quote for precise numbers.
Can you do blind vias on 8-layer?
Yes. L1-L2 and L7-L8 blind vias are standard. Buried vias (L2-L7, L3-L6) also available. This approaches HDI territory — contact us for complex via structures.
What material do you recommend?
FR-4 TG170 for most applications. For high-speed (PCIe Gen4+, 10G+ Ethernet), we recommend low-loss FR-4 or Megtron 4. Our engineers can advise based on your signal speeds.
Ready for 8-layer?
Instant pricing. Full impedance control. Engineering review on every order.