PCB News - PCBA process flow sets wide charging standards

PCBA process flow sets wide charging standards
At present, the country has higher and higher requirements for environmental protection and greater efforts in link governance. This is a challenge but also an opportunity for PCB factories. If PCB factories are determined to solve the problem of environmental pollution, then FPC flexible circuit board products can be at the forefront of the market, and PCB factories can get opportunities for further development.

In the PCB process, the reservation of the process edge is of great significance for the subsequent SMT chip processing. The process side is to assist in the production of the plug-in board, and the part of the welding wave on the two or four sides of the PCB board. It is mainly used to assist in the production. It is not part of the PCB board and can be removed after the production is completed.

Since the process side consumes more PCB plates and increases the overall cost of PCBA, it is necessary to balance economy and feasibility when designing the PCB process side. For some special-shaped PCB boards, the original PCB board with 2 process edges or 4 process edges can be greatly simplified through the method of splicing. When designing the splicing method in patch processing, it is necessary to fully consider the track width of the SMT placement machine. For splicing boards with a width of more than 350mm, it is necessary to communicate with the process engineer of the SMT supplier.

The main reason for leaving 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 the components that are too close to the track side are sucked in the nozzle of the SMT placement machine and mounted to When the PCB board, the phenomenon of collision occurs, and the production cannot be completed, so a certain process edge must be reserved, such as 2~5mm and so on. The same applies to some plug-in components to prevent similar phenomena during wave soldering.

The flatness of the PCB process edge is also an important part of PCBA production. When removing the PCB process edges, it is necessary to ensure that the process edges are flat, especially for PCB boards that require extremely high assembly accuracy. Any uneven burrs will cause the mounting holes to shift and cause great troubles for subsequent assembly. iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. With more than ten years of experience in this field, we are committed to meeting the needs of customers from different industries in terms of quality, delivery, cost-effectiveness and any other demanding requirements. As one of the most experienced PCB manufacturers and SMT assemblers in China, we are proud to be your best business partner and good friend in all aspects of your PCB needs. We strive to make your research and development work easy and worry-free.
iPCB has passed ISO9001:2008, ISO14001, UL, CQC and other quality management system certifications, produces standardized and qualified PCB products, masters complex process technology, and uses professional equipment such as AOI and Flying Probe to control production and X-ray inspection machines. Finally, we will use double FQC inspection of appearance to ensure shipment under IPC II standard or IPC III standard.