Surface Mount Technology (SMT) is a method used in electronics manufacturing where components are mounted directly onto the surface of printed circuit boards (PCBs). Unlike traditional through-hole technology, SMT allows for smaller, lighter, and more compact designs as components do not require leads to pass through the board. This technique enables automated production, increases assembly speed, and improves reliability. SMT is widely used in modern electronic devices such as smartphones, computers, and networking equipment due to its efficiency and ability to support high-density circuit layouts.