flame resistant fibre PCB

What is multilayer PCB manufacturing?

 The printed circuit board (PCB) is one of the most important parts of an electronic circuit and contributes to its performance. Of course, as with the operation of the PCB, it is also important to understand the manufacturing process. Since 60% of PCBs used in industrial electronic circuits are multilayered, the manufacturing process of multilayer PCBs has become a topic of concern. The demand for smaller, more powerful and faster devices has driven the demand for multilayer PCBs. Copper is used as the conductor of these PCBs, which contributes to their current-carrying capacity.

The biggest difference between PCB multi-layer boards and single-sided and double-sided boards is the addition of internal power and ground planes. The power supply and ground network are mainly routed on the power supply layer. There are conductive metals on both sides of each substrate layer on the PCB multi-layer board, and a special adhesive is used to connect the boards together, and there is an insulating material between each board. However, PCB multilayer wiring is mainly based on the top and bottom layers, supplemented by intermediate wiring layers.
Therefore, the design of the multilayer PCB board is basically the same as the design method of the double-sided board. The key is how to optimize the wiring of the internal electrical layer to make the wiring of the circuit board more reasonable. The inevitable product of multi-functional development, large capacity and small volume.
With the continuous development of electronic technology, especially the extensive and in-depth application of large-scale and ultra-large-scale originality electronics ICs, multi-layer PCBs are developing rapidly in the direction of HDI PCB, high precision and high-level digitization. Thin line, small aperture penetration and blind hole technology BVH (buried/blind via hole) PCB can meet market demand. PCB multilayer printed boards are widely used in the manufacture of electronic products due to their flexible design, stable and reliable electrical performance and excellent economic performance.