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Multilayer PCBs
14 April 2022
The multilayer PCB segment is a big part of our production. In order to support this important segment, we have developed long-standing relationships with a broad factory base. The factories are carefully selected in our sourcing process.

What is a multilayer PCB?
It is a PCB made with three or more conductive copper layers. The conductive foil appears to be various layers of a multi-sided circuit board. The different inner layers are processed in pairs (on a core) and then bonded together using prepreg as the insulating layer. The layers are then placed in such a way that both sides of the PCB can be used to mount components with additional tracking/electrical connections on the inside of the board. Vias are used as a source of the electrical connections between the different layers of a multilayer PCB.
Many products use multilayer PCBs, including computers, medical equipment, in-car systems, GPS and satellite systems, industrial control systems
Please contact your local NCAB Group company if you need further information or assistance, we are happy to help you.
Feature | NCAB´s technical specification |
---|---|
Number of layers | 4 – 22 layers standard, 30 layers advanced, 40 layers prototype. |
Technology highlights | Multiple layers of epoxy glass fiber bonded together with multiple layers of copper of varying thicknesses. |
Materials | High performance FR4, halogen-free FR4, low loss and low Dk materials |
Copper weights (finished) | 18μm – 210μm, advanced 1050μm / 30oz |
Minimum track and gap | 0.075mm / 0.075mm |
PCB thickness | 0.40mm – 7.0mm |
Maxmimum dimensions | 580mm x 1080mm, advanced 610mm x 1400mm |
Surface finishes available | HASL (SnPb), LF HASL (SnNiCu), OSP, ENIG, Immersion Tin, Immersion Silver, Electrolytic gold, Gold fingers |
Minimum mechanical drill | 0.20mm |