Surface Mount Technology (SMT) is the soldering of Surface Mount Components (SMC) on the surface of the PCB. The circuit board or device thus created is the Surface Mount Device or SMD. SMT takes great advantage over the conventional Through Hole Technology which is the placing of components through the holes of the PCB. SMT components are extremely small in size and are very difficult to identify since most of them are similar in size and shape. Manual assembling is practically impossible since the soldering pads are very small and a magnifier is required to see the solder pads and tracks. Trouble shooting and component replacement is also very difficult and requires extraordinary skill and suitable tools. The SMT is named so because the solder pads and components are present on the surface of the PCB on the same side.
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Filed Under: Electronic Projects