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What are the disadvantages of pcb yin and yang board,Socket terminal PCB Merchant

source:Industry News release time:2021-12-20 Article author:sznbone Popular:pcb

  I have explained the definition of pcb yin and yang board and the advantages of pcb yin and yang board. Any imposition method has its unique advantages, and there are also certain limitations. The yin and yang imposition method is no exception. This chapter mainly explains the existence of pcb yin and yang imposition. What are the disadvantages and limitations:    1: Increased man-hours. Although PCB board has many advantages, after all the PCBA assembly operations are completed, it must be cut (de-panel) into a single board, which requires an additional process. This will increase the number of man-hours and increase the risk of transporting collisions.

  2: Affect the solder paste printing. If there are too small parts such as fine pins and 0201 on some boards, the number of panels can not be too many, because there is a tolerance between the single board and the single board, if there are too many panels, it may It will cause the tolerance to be too large to meet the accuracy requirements of solder paste printing, and finally the solder paste will be printed off and the solder will have problems. 3: Deformation problem. It is not recommended to put too many boards on a thin PCB board, because the thinner the PCB, the greater the deformation. Too many boards will become wider. SMD and reflow furnace are both a test. Of course, this aspect can be overcome with a furnace carrier or a full-course carrier, but the cost of the carrier and the increased labor cost must be considered.


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