SMT stands for surface mount technology and is a popular method of soldering components to PCBs.Components are mounted on the surface of the board, not through-hole drilled like in older technologies.The main benefit of SMT is that it's faster and more accurate because there's less room for error when placing components.There are two types - manual and automated (robotic).Manual SMT requires hand placement with tweezers or other tools while automated SMT uses robotic arms to place components automatically.Automated SMT has a higher cost associated with it but can be done at high speeds which increases production rates significantly.