source:Industry News release time:2022-03-30 Article author:sznbone Popular:pcb
How are electronic components placed on the PCB to form a PCBA?
At present, the mainstream PCBA assembly is "SMT (Surface Mount Technology, Surface Mount Technology)", which will first print solder paste on the empty board, and then patch the electronic components on the PCB, and flow it back to the PCB. Solder the high temperature furnace (Reflow), and paste the components on the PCB through solder paste welding. (Whether the strength of solder paste solder paste to PCB is firm, it will involve solder strength test, please refer to this article for more details.)
A small number of PCBA assemblies will use "Wave Soldering" technology. Generally speaking, there will be some electronic components on the assembly board that are relatively heavy or need to withstand external force insertion and removal. Such components are not technically unable to be made into SMD components. , or the price of making SMD components does not meet market expectations, or some components that must be impacted by external forces when used by end customers, they will be designed as through-hole components, that is, plug-in (DIP), and then flow through Wave soldering ovens solder components to the PCB.
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