Evolution and Reasons
The SMT evolved as a response to the demand for miniaturization, improved performance, and higher production speeds in the electronics industry. As electronic devices became smaller and more complex, traditional through-hole assembly methods became limiting due to larger component sizes and increased assembly time.
Surface Mount Technology
Surface Mount Technology (SMT) is used in the electronic industry to assemble and solder electronic components directly onto the surface of printed circuit boards. Unlike through-hole technology, where components have leads inserted into drilled holes, SMT components have small leads or no leads, relying on solder paste and a reflow soldering process to establish electrical connections.