Products / Multilayer PCB
Multilayer PCB
Three to 36 layers with controlled impedance, for designs that need more routing space, solid power planes and clean signals.
More layers, shorter paths.
A multilayer board stacks inner copper layers between sheets of prepreg and core material and presses them into a single panel. Dedicated ground and power planes sit next to the signal layers, which keeps return paths short, lowers noise and lets dense components be routed on a small outline.
We supply multilayer boards from 3 to 36 layers in FR-4 and high-Tg laminates, built to IPC Class 2 or Class 3. Every order is reviewed for manufacturability before production, and the stack-up is confirmed with you before anything is built.
When to choose it
- Two layers no longer give enough routing space, or the board outline is fixed.
- High-speed or impedance-controlled signals need a reference plane.
- Power distribution needs full planes instead of routed tracks.
- EMC requirements call for shielding layers.
Key figures
| Layer count | 3 – 36 layers |
| Min. track / gap | 50 µm / 50 µm |
| Copper weight | 18 µm – 400 µm |
| Materials | FR-4, High-Tg FR-4, polyimide |
| Surface finishes | Lead-free HASL, ENIG, hard gold fingers, selective hard gold, chemical tin |
| IPC performance class | Class 2 / Class 3 |
Design notes
- Keep the stack-up symmetrical around the centre of the board to limit bow and twist.
- State impedance targets and the layers they apply to in the fabrication drawing. Trace widths are confirmed against the actual stack-up.
- Say if the board will see several reflow cycles or high operating temperatures, so that a high-Tg material can be chosen.
What we need to quote
Your production files (Gerber and drill data) with a fabrication drawing or readme that states board thickness, surface finish and copper weights.
For multilayer boards, include the layer order or a stack-up, and any impedance requirements.
For assembly on the same order, add the BOM, assembly drawing and pick-and-place file.
Have a build in mind?
Upload your Gerbers and BOM for a fast, no-obligation quote. Need an NDA first? You can ask for one on the quote form.
Certificates and documentation
ISO 9001, ISO 14001 and ISO 45001 certificates from our manufacturing partner, together with RoHS and REACH declarations, are available on request.