PCB News - Do you really understand multilayer circuit board manufacturers?

Do you really understand multilayer circuit board manufacturers?

In people’s lives, most people may have never heard of Multi-layer circuit boards or PCB proofing, and even think that these have nothing to do with them and can’t get in touch with them, but in fact, circuit boards are widely used in us. In his life. Like TVs, computers, mobile phones, keyboards, displays, remote controls, fans, air conditioners, etc., as long as we can see items that can be powered on, basically they cannot do without circuit boards. It can be seen that PCBs have gradually become people today. A very important object of life.

So what materials are made of PCB? A simple PCB is composed of a piece of copper-clad fiberglass material or copper foil attached to both sides of the board. For multi-layer boards (boards with more than two layers of copper -) in order to build a solid board between the various copper layers, a piece of prepreg material is often placed between these core materials. The prepreg material is similar to the core material, but with the addition of an adhesive material so that it can adhere to the upper and lower inner layers.

Regarding the welding layer of multilayer circuit boards, when our engineers are designing multilayer circuit boards, including engineers in multilayer circuit board production plants, they often encounter some problems about the solder mask of multilayer circuit boards when processing documents. So what role does solder mask play on the PCB board? Solder mask is a material used to coat multilayer circuit boards. The purpose of coating is to: prevent the multilayer circuit board from being damaged by the surrounding environment; to electrically insulate the multilayer circuit board; and to prevent soldering Bridge; protect the components installed on the multilayer circuit board; prevent the circuit board from being affected by the heating of the components installed on the PCB board.

Since different types of multilayer circuit boards have different sizes and thicknesses after coating, some standards do not regard the solder mask as a sufficient insulator.

When it comes to solder mask, the pads also need to be understood by us. The large and small pads that appear on the multilayer circuit board are mainly divided into two types of surface mount pads and through-hole soldering. Plate. Surface mount pads are square or rectangular copper areas on the PCB used to mount components. The size and shape of the surface mount sweat depends on the components that are mounted or soldered on the pads. Most component manufacturers will recommend pad sizes based on their components.

For the entire design of the PCB, it is determined by the specific application and the task determined by the designer. The design process can be simply defined as designing the specifications of the multilayer circuit board, or it can be defined as including the requirements of the environment, housing, connection, installation and implementation into the process of designing the multilayer circuit board. First of all, functions and drawings, whether there is a size limit for the multilayer circuit board, if not, then the size of the multilayer circuit board can be determined by the components on the circuit and the area they occupy. This also provides engineers with a working idea. The engineer can create the circuit and enter it into the schematic acquisition program. Of course, when designing, it is best for engineers to make necessary modifications based on the process capability, manufacturing quality and speed of the multilayer circuit board manufacturer, and then pass the data to the manufacturer.

When the multi-layer circuit board manufacturer gets the gerber file provided by the customer, it selects the required materials and specified materials, and processes the multi-layer circuit board to produce a board that matches the designer's drawing.

Sometimes it is necessary to automatically mount the components on the multilayer circuit board. At this time, the circuit board and the components will be sent to the integrator. At the integrator, the components are mounted on the circuit board. Take it back to the engineer to test and develop it.

PCB multilayer circuit boards have now quietly penetrated into our lives, bringing us a lot of convenience, most people can’t do without it, so for the development and innovation of PCB multilayer circuit boards Function is essential.