Printed circuit boards are the special types of copper clad Bakelite boards that are used as a base to mount the electronic components. Each board has a special copper track that conducts electrical current to each installed component. Different techniques are used during the fabrication process. It is mainly helpful in the assembly process. The fabrication process involved design selection, assembly and testing of each board individually.
If the fabrication part is not perfect, then the board and components may malfunction. PCB fabrication is one of the most important processes of PCB development. You can Get more Details related to the printed circuit board fabrication process and development stages in the content belowg
What does the PCB development process involve?
The entire development process has to be completed in different stages. It involves different processes ranging from the right board selection to designing the layout, mounting and production. Once the boards have been produced each one of them is tested individually for quality.
A professional team is responsible for quality checking each board during different stages as well. In basic, any PCB development will involve- designing, manufacturing process and testing stage. During any stage or process maintaining adequate quality is important.
If the board malfunctions, then the electronic device may not work perfectly.
Basic manufacturing will always start from the designing stage. The board layout has to be designed by a professional team. Technical details have to be looked into by the quality control team and engineers.
A Right-sized board, depending on many different factors, has to be selected. If you are going to install a lot of components, then the size and dimension of the boards have to be worked out. The manufacturing process selection will also depend on the type of board that you are manufacturing.
There are different types of boards- Bakelite, epoxy and glass. Carbon PCBs are also common in the present time.
The testing of the boards has to be performed on multiple levels. Before the board is sized and treated, it has to be tested for Bakelite and copper quality. For best results, good quality Bakelite and copper material have to be used during the manufacturing process.
It is always advisable to go with branded boards that are already tested for quality and performance. If the Bakelite is not of good quality, then the board and components may also get overheated.
The assembly or fabrication process
Once the boards are sized, the components can be assembled. But the design has to be prepared on the board before the components can be assembled. This is a tedious task as a lot of holes have to be drilled on the Bakelite material. In general, the drilling task is only done by a professional team. This can be manual or fully automated. At present time CNC machines are widely used for accomplishing this task. If the holes are not perfect, the components may not mount on the board.
You can also collect more details about the printed circuit board fabrication process online.
The imaging process
In general, the imaging process is always performed even before the boards are treated with chemicals. The entire circuit board layout has to be imaged on the copper clad. Only after the image is transferred to the cladding, it is possible to etch the boards.
The process of etching will remove any unwanted copper leaving a fine track for the current to pass. This task is usually performed using specialized etching chambers and machines. It is not performed manually as the chemicals used are harsh for the skin.
Layer etching is usually performed on PCBs that are having multiple layers. These types are not easy to manufacture and fabricate. Well trained team of experts will only be assigned with the task. Each layer has to be created individually on each board.
Proper inspection is also essential. This is why the employees working in this industry are well paid. The entire process of creating and fabricating the PCBs will be time-consuming. Once the boards have been prepared they have to be polished or coated. To accomplish this task, different waxing materials and chemicals are used. Gold and silver plating are the two most common techniques.
PCB fabrication process is a highly complex process. Specialized machines and tools are used for fabrication and testing. The final board is always tested for performance before it is mounted on the device.