SMT – Surface Mount Technology refers to the assembly of electronic components on the surface of a printed circuit board.
The printed circuit contains conductive surfaces also known as pads, fitted to the form and size of the components, on which the electronic components are welded and by that physically connecting the components to the circuit.
The uniqueness of the SMT technology lies in the fact that the transmission surfaces are made of a small, non-perforated metal surface and enable the use of very small components, high assembly density and thus a highly complex product with small size.
The electronic components are attached to the surface by applying special soldering paste, placing the components on it and then, the printed circuit undergoes a special controlled heating process that melts the soldering paste and welds the components to the circuit. This is a process that ensures the best results and eliminates the thermal effort of the circuit. The process is performed automatically and quickly and therefore also cheap.
Advantages of SMT PCB ASSEMBLY
SMT PCB ASSEMBLY have a number of essential advantages over conventional circuit assemblies.
First, this method simplifies and reduces the assembly process cost and enables optimal results with components that are much smaller and lighter.
In addition, the PCB manufacture process itself is quicker since there is no need to drill holes for the components legs insertion
When needed, components can be mounted on two sides of the circuit, allowing further reduction of the circuit.
The automatic assembly process is very accurate with little chance of errors . The direct connection of the component to the circuit contributes to reducing the induction and resistance of the connection points, thus reducing electronic interferences in the circuit.