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What are the benefits of reserved process edges for PCB production?
The main reason for the reserved process side of PCB production is that the track of the SMT placement machine is used to clamp the circuit board and flow through the placement machine, so the components that are too close to the track side are sucked in the nozzle of the SMT placement machine And when it is mounted on the circuit board, a collision phenomenon occurs and the production cannot be completed. Therefore, in the PCB assembly process, in order to consider the subsequent patch and plug-in, the process edge is generally added. So, what are the benefits of reserved process edges for PCB production?
The reserved process edge is to assist the patch plug-in welding to take the added part of the PCB on both sides or four sides of the PCB. It is mainly for auxiliary production and is not part of the PCB. It can be removed after the PCBA manufacturing is completed.
The reserved process edges for PCB production will consume more plates and increase the cost of PCB production. Therefore, when designing the PCB process edges, it is necessary to balance economy and manufacturability. For some special circuit boards, the original PCB board with 2 process edges or 4 process edges can be greatly simplified by the way of PCB puzzle. Smt patch processing needs to fully consider the track width of the SMT placement machine when designing the splicing method. For splicing boards with a width of more than 350mm, it is necessary to communicate with the process engineer of the SMT supplier.
The flatness of the PCB production process edge is also an important part of the printed circuit board production. When removing the PCB production process edges, it is necessary to ensure that the process edges are flat, especially for circuit boards that require extremely high assembly accuracy. Any uneven burrs will cause the mounting hole position to shift, which will bring great impact to the subsequent PCBA assembly. trouble.
The above is the PCB knowledge shared by the editor today. Through this article, you must have a certain understanding of "What are the advantages of PCB production reserved process".
