China Multilayer PCB Suppliers: Trusted Factory Partnerships for High-Quality Circuit Boards
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.
Common Applications
Many products use multilayer PCBs, including 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?
A multilayer PCB is a circuit board made with three or more conductive copper layers bonded together with insulating layers (prepreg). It allows for higher component density and complex tracking on inner layers.
How many layers can AREX manufacture for a multilayer PCB?
We offer 4 to 22 layers as standard, up to 30 layers for advanced requirements, and can produce prototypes with up to 40 layers.
What materials are used in your multilayer PCBs?
We use high-performance FR4, halogen-free FR4, as well as low-loss and low Dk materials to ensure optimal electrical performance.
What are the typical applications for these boards?
Multilayer PCBs are essential for computers, medical equipment, automotive systems, GPS/satellite technology, and industrial control systems.
Why is the design stage critical for PCB production?
The initial design significantly impacts cost and quality. Since over 30% of Gerber data packs contain errors or conflicts, following strict design guidelines is crucial to avoid manufacturing issues.
What surface finishes do you provide?
Available finishes include HASL (SnPb), LF HASL, OSP, ENIG, Immersion Tin, Immersion Silver, Electrolytic Gold, and Gold fingers.