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Service

SMT Assembly

SMT assembly is the core of our in-house SMT PCB production line. Paste deposit, placement, reflow, and inspection run as one continuous routed flow, with handoff to optional firmware loading or functional testing.

What this service includes

  • Solder paste stencil printing with dual squeegee
  • Vision-assisted pick-and-place across 0201 to 35 mm components
  • Multi-zone horizontal convection reflow, lead-free SAC305 capable
  • Inline AOI on every assembled board
  • Defect-rate logging per batch with feedback into DFM review

Production workflow for this service

  1. INPUT FILES

  2. Stencil and paste prep

    Stencil mounted, paste loaded, alignment verified.

  3. Paste deposit

    Dual-squeegee print across the panel.

  4. Component placement

    Pick-and-place sequenced from the feeder bank.

  5. Soldering and reflow

    Profile selected from stored options, board passes through six zones.

  6. AOI

    Camera inspection of every joint and component.

  7. OUTPUT

Technical scope

Placement accuracy
+/- 0.025 mm
Min component
0201
Max component height
16 mm
Max throughput
up to 4800 cph theoretical, typical 2500 to 3600

When buyers need this

  • Your design uses SMT components and you need automated placement on a real production line.
  • You need consistent reflow profile control across batches.

Frequently asked questions

Which design files do you accept?

Gerber RS-274X, ODB++, and IPC-2581 for PCB data. BOM in xlsx or csv with manufacturer part numbers. CPL or pick-and-place file in csv or txt. Step files for enclosures. Firmware binaries as hex, bin, or signed image bundles.

How is solder joint quality verified?

Automated optical inspection runs on every assembled board against IPC-A-610 acceptance criteria. We support Class 2 and Class 3 inspection profiles. X-ray inspection is available through partner labs for BGA and high-density boards when required.

What is your minimum order quantity?

We work from pilot batches through repeat production. The sweet spot for our SMT line is low to medium volume, typically under 5000 units per batch with mixed-component boards. We plan capacity in advance during DFM and BOM review for larger volumes.

Quote smt assembly

Send your BOM, gerbers, and CPL. We respond within one business day. NDA on request.

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