A: Focus on the process capability range. When choosing a PCB manufacturer, try to choose a circuit board manufacturer with a wide range of processes and strong process capabilities, so as not to exceed the ability of the circuit board manufacturer to delay the processes involved and affect the PCB delivery time. Therefore, you must refer to the circuit board manufacturer in detail. PCB process requirements to prevent the electrical function from being affected by the lack of PCB manufacturer's process.

B: Pay attention to whether the production equipment of the PCB manufacturer can meet the requirements. Due to the different types of PCBs, the production requirements of PCBs are also very different, and the level of equipment used by PCB manufacturers is also different. Therefore, it is necessary for PCB manufacturers to compare samples before considering batch cooperation.

C: Note whether there is a pegging fork clause. Due to the particularity of PCB custom processing, all PCBs that need to be assembled and shipped have a one-time scrapping probability. In general, customers accept the terms of pegging fork by default. If you do not accept it, you need to communicate with the PCB manufacturer. Usually the circuit board manufacturer will charge a certain fee, and you need to choose whether to accept the fork board according to your own situation.

D: Pay attention to whether the products of PCB manufacturers have quality assurance. For quality assurance, when selecting a PCB manufacturer, purchasing personnel must first judge the quality, such as whether the PCB product has passed the pre-shipment test, so as to avoid quality problems affecting subsequent safety issues.