Large Format PCB

4 Layers 3/1/1/3oz Thick-Copper Large Format 700*550mm ENIG 1u PCB

This 4-layer Large Format & Thick-Copper PCB is pressed on FR4 TG150 and finished at 2.0 mm overall thickness with ENIG 1u over green solder mask and white legend. What makes this part non-trivial: Large Format Thick-Copper processing, copper geometry held to 6.0 mil line width and 6.0 mil spacing, mechanical holes from 0.6 mm. Quality release covers 100% AOI, ICT and FCT testing, IPC-A-610 E Class II and thickness to ±10%. This one was quoted for electronic device.

  • Layers4 Layers (Max 64 Layers)
  • Base materialFR4 TG150
  • Finished thickness2.0 mm (Max 8mm)
  • Surface finishENIG 1u
  • Min. line width / spacing6.0 mil (Min 2mil) / 6.0 mil (Min 2mil)
  • Special processesLarge Format Thick-Copper

Quotation within 6 hours. Gerber, PowerPCB, CAD, AutoCAD, OrCAD, P-CAD, CAM-350 and CAM2000 files accepted.

What matters on this build

Large Format Thick-Copper

Large Format Thick-Copper runs on our own lines alongside POFV, backdrill, edge plating, plated half holes and step gold finger — no second supplier.

4-layer construction, scalable to 64 layers

This part is 4-layer; the same presses run 1 to 64 layers, so a stack-up revision does not force a supplier change.

FR4 TG150 laminate

Built on FR4 TG150 — FR4 — drawn from over 120 laminate types held in the warehouse, from KB and ITEQ through Rogers, Isola and Panasonic.

6.0 mil / 6.0 mil line width and spacing

Etched to 6.0 mil width and 6.0 mil spacing here; the process floor is 2/2 mil inner at 1/3 oz copper, with ±10% accuracy on impedance layers.

ENIG 1u surface finish

Finished with ENIG 1u. ENIG 1–3 μin, ENEPIG, hard gold to 3.0 μm, immersion silver, immersion tin, OSP and lead-free HASL are all in-house.

Full specification as manufactured

These are the parameters this part was quoted, tooled and shipped against.

ParameterValue
PCB TypeLarge Format & Thick-Copper PCB
Number of Layers4 Layers (Max 64 Layers)
Finished Thickness2.0 mm (Max 8mm)
Base MaterialFR4 TG150
Copper Thickness3/1/1/3oz
Min. Mechanical Hole0.6 mm (Min 0.1mm)
Min. Line Width6.0 mil (Min 2mil)
Min. Line Spacing6.0 mil (Min 2mil)
Surface FinishingENIG 1u
Solder MaskGreen
Silk ScreenWhite
Thickness Tolerance±10%
Impedance Control Accuracy±10% (min±5%)
Testing Service100% AOI ICT FCT Testing
Special ProcessesLarge Format Thick-Copper
PCB StandardIPC-A-610 E Class II
Brand NamePEAK PCB
Place of OriginShenzhen, Guangdong, China
Packaging InnerVacuum Packing/ Anti-Static Package
Packaging OuterExport Carton/ Customizable
PortShenzhen,Hongkong
Supply AbilitySample and Mass Production
Finished Inner Copper Thickness1oz (Max 14oz)
Finished Outer Copper Thickness3oz (Max 14oz)
Outline ProfileRout/ V-cut/ Bridge/ Stamp Hole
ApplicationElectronic Device
Acceptable File FormatGerber file, Powerpcb, CAD, AUTOCAD, ORCAD, P-CAD, CAM-350, CAM2000

Questions engineers ask about this board

Can this design be scaled beyond 4 layers?

Yes. This part is quoted at 4 layers and the plant fabricates 1 to 64 layers, including sequential-lamination HDI up to 5+N(N+M)+5.

Can a different laminate be substituted for FR4 TG150?

It can. FR4 TG150 is what this part is built on, but material is a design input — Rogers, Arlon, Taconic, Isola, Nelco, Panasonic, TUC, ITEQ, SYTech, Ventec and KB grades are all stocked, and customer-supplied stock is accepted.

Is ENIG 1u the only surface finish offered on this board?

No. ENIG 1u is specified here; ENIG at 1–3 μin gold, ENEPIG, hard gold to 3.0 μm, immersion silver, immersion tin, OSP and lead-free HASL are alternatives, subject to panel size limits on HASL.

What files do you need to quote this part?

Gerber RS-274X plus a drill file and a stack-up or impedance note. PowerPCB, CAD, AutoCAD, OrCAD, P-CAD, CAM-350 and CAM2000 formats are also accepted. Quotation normally comes back within 6 hours.

Other builds in Large Format PCB

Get this board quoted

Send the part number or your own Gerber set. An engineer replies with price, lead time and any DFM comments — usually inside 6 hours.