Multilayer PCBs are printed circuits made up of more than two layers. They must therefore have at least three layers of conductive material within the insulating material.And they allow the creation of circuits with reduced dimensions, with a considerable saving of space and weight, the external wiring is reduced to a minimum, the electronic components can be mounted by adhering to a higher assembly density
| Feature | Technical Specification |
|---|---|
| Number of Layers | 4-20 layers Standard, 32 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 / 300z |
| Minimum Track and Gap | 0.050mm / 0.050mm |
| PCB Thickness | 0.40mm - 7.0mm |
| Maximum 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 |
| Minimum Laser Drill | 0.10mm standard, 0.075mm advanced |
Multilayer PCBs are printed circuit boards built by laminating three or more copper layers with insulating dielectrics in between. Inner signal layers and dedicated power/ground planes let you route complex circuits in a compact footprint while improving electrical stability and EMI performance.
If your design is limited by routing density, noise, high-speed signals, or power distribution, moving from 2-layer to multilayer is often the most effective step.
