In the PCB production process, there is a more important process, that is, the process side, and the reservation of the process side is of great significance for the subsequent PCBA processing
The process edge is the part added on both sides or four sides of the PCB board, mainly to assist the patch plug-in welding off the board, that is, to facilitate the SMT patch machine track clamp the PCB board and flow through the patch machine, if the components too close to the track edge in the SMT patch machine nozzle to absorb components and mount to the PCB board, there may be collision phenomenon. As a result, production cannot be completed, so a certain process edge must be reserved, and the general width is 2-5mm. This method is also suitable for some plug-in components to prevent similar phenomena when undergoing wave soldering.
The process edge is not part of the PCB board and can be removed after the PCBA processing is completed
The way the craft edge is made
1, V-CUT: A process connection between the process edge and the board, slightly cut on both sides of the PCB board, but not cut.
2, connecting ribs: the use of several ribs to connect the PCB board, in the middle of some stamp holes, so that the hand can be broken or washed off with the machine. The plate consumed by the process side will increase the overall cost of the PCB, so when designing the PCB process side, it is necessary to balance economy and manufacturability. For some special shape PCB boards, the PCB boards that were originally left with 2 process edges or 4 process edges can be greatly simplified by cleverly assembling them.
