Multilayer PCBs: Trusted China Suppliers and Factories for High-Quality Production Solutions
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.
- Computers
- Medical equipment
- In-car systems
- GPS and satellite systems
- Industrial control systems
Please contact us if you need further information or assistance, we are happy to help you.
Product Specifications
| Feature | AREX´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 |
| 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 |
Product Service
Nothing affects the PCB’s cost and quality as much as the initial design. As modern electronic products are expected to offer more and more advanced functions, while the products themselves are becoming smaller and smaller, this puts greater demands on the PCB design and the importance of making the right choices at the design stage.
More than 30% of the Gerber data packs we receive do have some issues, generally, ambiguous information, errors, design rule conflicts, missing information and contradictions between the data and specifications. To prevent that it gets wrong from the start, we have put together these design guidelines, to use as a checklist.
When using combinations of parameters, you should always consult us to get the solution.
Frequently Asked Questions
What is a multilayer PCB and how is it constructed?
A multilayer PCB is a printed circuit board made with three or more conductive copper layers. The inner layers are processed in pairs on a core and bonded together using prepreg as the insulating material. Vias are utilized to establish electrical connections between the different layers.
What are the standard layer count specifications for AREX PCBs?
We offer a standard range of 4 to 22 layers, advanced capabilities up to 30 layers, and prototype solutions for up to 40 layers.
What surface finishes are available for these multilayer PCBs?
Available surface finishes include HASL (SnPb), LF HASL (SnNiCu), OSP, ENIG, Immersion Tin, Immersion Silver, Electrolytic gold, and Gold fingers.
Why is the initial design stage so critical for multilayer PCBs?
The initial design stage heavily affects the final cost and quality of the PCB. As modern electronic devices become smaller and require more advanced functions, making correct design decisions early on is crucial.
What common issues are found in submitted Gerber data packs?
More than 30% of received Gerber data packs contain errors such as ambiguous information, design rule conflicts, missing details, and contradictions between the data and specifications.