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The evolution of PCBA
In the last article, we have a deeper understanding of PCBA and what PCBA is. Today we will expand on this to see the evolution of PCBA and understand how PCBA evolved step by step.
PCBA is the abbreviation of Printed Circuit Board+ Assembly in English, which means that the empty PCB board passes through the SMT assembly or the entire manufacturing process of the DIP plug-in, referred to as PCBA.
Both SMT and DIP are ways to integrate parts on the PCB. The main difference is that SMT does not need to drill holes on the PCB. In DIP, the PIN pins of the parts need to be inserted into the holes that have been drilled.
SMT (Surface Mounted Technology) surface mount technology mainly uses mounters to mount some tiny parts on the PCB. The production process is: PCB board positioning, solder paste printing, mounter mounting, and reflow Furnace and finished inspection. SMT is very sensitive to positioning and the size of parts during integration. In addition, the quality of solder paste and printing quality also play a key role.
DIP stands for "plug-in", that is, inserting parts on the PCB board. Because the parts are large in size and not suitable for placement or the manufacturer's production process cannot use SMT technology, the parts are integrated in the form of plug-ins. At present, there are two implementation methods of manual plug-in and robot plug-in in the industry. The main production process is: sticking adhesive (to prevent tin plating to the place where it should not be), plug-in, inspection, wave soldering, and brushing (removal in the furnace Stains left in the process) and made inspection.
The evolution of PCBA is roughly as mentioned above. With the advancement of science and technology, I believe that PCBA will continue to change in the future, and the development and extension of more content and services, let us look forward to it together.
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