The PCB board is an important electronic component, a support for electronic components, and a carrier for electrical connections of electronic components. In the production process of the PCB circuit board, Xun should leave a process edge for the PCB circuit board, so why should a certain process edge be left for the PCB circuit board?
In fact, the process side of the PCB board is to assist the production of plug-in boards, and the part where the soldering wave peaks are added on both sides or four sides of the PCB board is mainly to assist production; it is not part of the PCB board and can be removed after the production is completed.
The main reason for keeping the process side is that the track of the SMT placement machine is used to clamp the PCB board and flow through the placement machine, so components that are too close to the side of the track are picked up by the SMT placement machine nozzle and placed on the When the PCB is on the board, the phenomenon of collision occurs, and the production cannot be completed, so a certain process edge such as 2~5mm must be reserved. The same applies to some plug-in components; prevent similar phenomena when going through wave soldering.
