SMT Services

Our Surface-Mount Technology (SMT) manufacturing involves assembling electronic components directly onto the surface of printed circuit boards (PCBs). This process contrasts with through-hole technology, where components are inserted into holes in the PCB. Here’s an overview of SMT manufacturing services

Design and Prototyping

Our SMT manufacturing begins with the design and prototyping of PCBs. Engineers create detailed designs that specify the layout of components on the board, considering factors like size, placement, and electrical requirements.

Solder Paste Printing

A solder paste, which is a mixture of solder and flux, is applied to the PCB using a stencil. This paste will later be used to form electrical connections between the PCB and the SMT components.

Component Placement

Automated machines called pick-and-place machines place SMT components onto the solder paste-covered PCB. This process requires precision to ensure correct alignment and placement of components.

Reflow Soldering

The PCB with placed components is then passed through a reflow oven. The heat from the oven melts the solder paste, forming solid electrical connections between the components and the PCB.

Inspection and Testing

After soldering, the PCBs undergo thorough inspection, often using automated optical inspection (AOI) systems to detect defects or misalignments. Further testing, including electrical tests, ensures that the assembled PCBs function correctly.

Rework and Repair

Any defective components or solder joints can be repaired through rework processes. This involves removing faulty components and replacing them or re-soldering connections as needed.

Final Assembly and Plugin DIP

Once tested, the PCBs are moved to next process of plug in components.

Why choose United Technology?

SMT Manufacturing

SMT manufacturing is valued for its efficiency, high-density assembly capability, and the ability to support a wide range of electronic components and designs.