Surface-Mount-Technology

November 13, 2017 by webadmin

Advantages of Using Surface Mount Technology

One of the circuit board assembly services which ADCO Circuits excels in is surface-mount technology (SMT), which has come into wide usage since its debut in the rocket circuitry for Saturn IV and Saturn V assemblies. There are a good number of reasons for this widespread popularity, beginning with the fact that it allows for much smaller components to be used on circuit boards. Some of the other reasons for its success are detailed below, and these provide such benefits that SMT is likely to be with us for a considerable period of time.

SMT benefits

Because smaller components can be used on a circuit board using SMT technology, the density of those components can be much greater, and the connection density can be correspondingly greater, because there are no through-holes (as there would be with through-hole (TH) technology), to block space on the mounting side or on the back side of the board.

This being the case, it’s easy to mount components on both sides of a board, to take advantage of all available space. Under conditions where boards are subjected to vibration or shaking, SMT-mounted components have proven to be more stable and more tolerant of disruption. Another performance gain is realized because there is lower resistance and inductance at the point of connectivity, which causes far less RF interference, and promotes better performance at high frequencies.

There are also production advantages to making SMT circuit boards, since it takes significantly less time to set up for a production run, and automated assembly is much simpler and quicker. Generally speaking, SMT components cost less in manufacturing than do the equivalent through-hole components, so manufacture is somewhat less expensive. To top it all off, there are lower radiated emissions from SMT manufacturing because there is smaller lead inductance and because the radiation loop area is also smaller in size.