SMT is a surface mounting technology (surface mounting technology).
Mounting technology is the most popular technology and process in electronic assembly industry. Electronic circuit surface mounting technology (surface mounting
Technology, SMT), known as surface mount or surface mount technology.
It is a circuit assembly technology in which surface assembly components without leads or short leads (SMC/SMD for short) are mounted on the surface of printed circuit board (PCB) or other substrates, and then soldered and assembled by reflow soldering or immersion soldering.
Extended data
The selection and design of surface mount components is the key link in the overall design of products. Designers should determine the electrical performance and function of components in the stage of system structure and detailed circuit design. In the stage of SMT design, the packaging form and structure of surface mount components should be determined according to the specific conditions of equipment and technology and the overall design requirements.
Surface mount solder joints are both mechanical and electrical connections, and reasonable selection has a decisive influence on improving PCB design density, productivity, testability and reliability.
There is no difference in function between surface-mounted components and plug-ins, but the difference lies in the packaging of components. The components and substrates of surface mount packages that withstand high temperature during welding must have matching thermal expansion coefficients. These factors must be considered comprehensively in product design.
Baidu encyclopedia -SMT patch