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Carson, CA 90746
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SMT Assembly

Yun Indistrial Provides Surface-mount technology

We specialize in Surface-Mount Technology (SMT) to apply components to the surface of PCBs.

Surface-mount technology (SMT) is a method for producing electronic circuits in which the components are mounted or placed directly onto the surface of printed circuit boards (PCBs). The PCB industry has largely replaced the thru-hole technology construction method of fitting components with wire leads into holes in the circuit board. Both technologies can be used on the same board, with the thru-hole technology used for components not suitable for surface mounting such as large transformers and heat-sinked power semiconductors.

An SMT component is usually smaller than its thru-hole counterpart because it has either smaller leads or no leads at all. It may have short pins or leads of various styles, flat contacts, a matrix of solder balls (BGAs), or terminations on the body of the component.

Special features:

  • High speed pick & place machine set up for all median to large run SMT assembly (SMTA).
  • X-ray inspection for high quality SMT Assembly (SMTA).
  • Amistar fine pitch can go down to 12 mil SMT fine pitch components
  • Fuji PQF pick & place machine give us more flexibility for small run and prototype board build up.
  • We can do IPC 610 Class III if customer required, otherwise, all the PCB assembly (PCBA) followed by IPC 610 class II standard.
  • Fuji NXT Surface Mount Technology (SMT) pick and place machine give us the capability to working on Surface Mount Technology (SMT) component package smaller than 01 005 which is 1/4 size of 0201 component.


We provide a complete suite of add-on PCB services including hand soldering, wire stripping, and more.