SMT jẹ abbreviation fun Imọ-ẹrọ Imudanu Ilẹ, Imọ-ẹrọ olokiki julọ ati ilana ni ile-iṣẹ apejọ itanna.Itanna Circuit Surface Mount Technology (SMT) ni a npe ni Surface Mount tabi Surface Mount Technology.O ti wa ni a irú ti Circuit ijọ ọna ẹrọ ti o fi ledless tabi kukuru asiwaju dada ijọ irinše (SMC / SMD ni Kannada) lori dada ti tejede Circuit Board (PCB) tabi awọn miiran sobusitireti dada, ati ki o si welds ati assembles nipasẹ ọna ti reflow alurinmorin tabi fibọ alurinmorin.