PCB are a very important component in electronic products and also the core carrier for making circuits. When making PCB, there may be scratches and copper exposure issues, which can have a serious impact on the performance and reliability of the circuit. Therefore, it is very necessary to take corresponding measures in a timely manner to avoid the occurrence of scratches and copper exposure issues. The main issue with copper exposure caused by scratches on PCB is the surface of the PCB, which exposes the underlying copper layer. Based on experience, this type of problem often occurs for the following reasons. Firstly, damage caused during transportation. Because the PCB is fragile, it needs to be handled carefully during the whole manufacturing process. However, during the transportation process, the PCB may be damaged by extrusion, collision and so on due to poor packaging and inappropriate transportation mode, resulting in scratches. Secondly, the manufacturing process is not standardized. Manufacturing PCB requires multiple processes and strict control during the operation process. Whether it is human or machine operation errors, we need to strictly manage them. If the operation is improper or the manufacturing process is not standardized, it can cause scratches on the PCB. Thirdly, the quality of raw materials is not up to standard. The materials of PCB generally include base plates, copper foil, chemical materials, etc. If the quality of these raw materials is not up to standard, it may also cause scratches on the PCB. How to avoid the problem of scratches and exposed copper on PCB? The packaging and transportation of PCB are very important during the manufacturing process. Especially for bulk packaging of a large number of PCB, professional packaging forms with different materials should be used to ensure that the PCB receive the best protection. Secondly, during the manufacturing process, each process should be inspected one by one to ensure that the manufacturing process is executed in a standardized manner. At the same time, a detailed inspection should be conducted from the selection of raw materials to their use to ensure that the quality of the materials meets the requirements. The problem of scratches and exposed copper on PCB exists, but as long as the manufacturing process is strictly controlled and corresponding preventive measures are taken, this problem can be avoided. Therefore, when manufacturing PCB, it is important to attach great importance to this issue and ensure that the PCB can be produced perfectly. !info-151-209 !info-152-210 !info-151-208 Sihui Fuji adheres to all standards, and we have developed strict operating procedures and continuously trained employees to operate according to standardized procedures, reducing the occurrence of substrate scratches and copper leakage during the production process.
