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What is PCB assembly process?
The technology used to assemble the circuit board and its various components is called the mounting technology board assembly in the circuit. Depending on the application, cost, scale and other considerations, manufacturers use different kinds of installation methods. Here are some of the most commonly used techniques:
1.Surface mount components
Surface mount components (or surface mount technology, also known as SMT) is a method in which electronic components standing upright on the PCB are directly connected to the surface of the circuit board. The final circuit board is called a surface mount device (SMD). This technology was originally called "flat mounting".
Most of the electronic boards currently produced are manufactured using SMT. Because of its increased circuit density and ability to produce results on smaller circuit boards, it has replaced the more traditional through-hole technology (more on the next point). Generally, SMT uses solder to connect the components to the circuit board, but in some cases, adhesive spots can also be used on the second side to keep the components in the reflow oven.
2.Board through hole components
Through-hole technology (also called "through-hole") is a mounting technology in which electronic components are inserted through holes built into the circuit board and then soldered to the pads. Welding can be done manually or using a plug-in installation machine.
Through hole technology replaces the traditional point-to-point structure. As double-sided and multi-layer boards become more and more popular, through holes are becoming popular. It is used to connect the component and the conductive layer to ensure the normal operation of the circuit board. These components are equipped with leads to connect to the other side of the through-hole board.
In contrast to the SMT method, the through-hole technology provides greater cohesion for the circuit board assembly because the unit is placed through the circuit board itself.
3.Electromechanical assembly
Electro-Mechanical components use electrical and mechanical units to cover a wide range of functions such as generating electricity, controlling switches and other mechanical tasks. Since electromechanical components are often used in applications with complex wiring and components, the components need to be put together manually.
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