PCB News - Multilayer Printed Circuit Board constitute

Multilayer Printed Circuit Board constitute

In the case of a large number of interconnection and cross requirements, if PCB wants to achieve a satisfactory performance, it must expand the board layer to more than two layers. Therefore, multilayer PCB appears. The original intention of Multilayer PCB is to provide more degrees of freedom for wiring path.

Multilayer PCB circuit board is composed of more than two conductive layers (copper layer) superimposed on each other. The copper layer is bonded together by resin layer (semi cured sheet). The manufacturing process is more complex. It is the most complex type of printed circuit board. What are the basic components of Multilayer PCB?

1. Signal layer

The most important thing for multi-layer PCB circuit board to realize information interaction is to have three signal layers, adopt welding method, place components and signal lines in multi-layer PCB circuit board, so as to make multi-layer PCB circuit board achieve normal information service function. Under the use of this information layer, multi-layer PCB circuit board presents good information interaction ability. Using this multi-layer PCB circuit board can achieve better electronic control ability.

2. Internal power layer

The signal layer and the internal power layer in the multilayer PCB circuit board are connected to each other through the aperture, so as to achieve better electronic operation capability. The internal power layer is a unique accessory, which can achieve better connection under the use of this internal power layer.

3. Mechanical layer

The accessories with indicative information about plate making and preparation methods can draw the frame of the circuit board in the use of multi-layer boards, place better processing technology, and realize the concise planning of the page. This mechanical layer also makes the connection of the process clearer and faster.