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Service

Functional Testing

Functional testing verifies that an assembled and programmed unit actually behaves correctly. We work with bed-of-nails fixtures, edge-connector probes, RF golden units, and current-signature analysis to catch defects before they reach the field.

What this service includes

  • Bed-of-nails or edge-connector test fixture support
  • GPIO, ADC, RF power, and current-draw verification per unit
  • Boundary-scan integration for high-pin-count parts (BGA, QFN)
  • RF golden-unit calibration for transmit and receive paths
  • Pass and fail criteria documented in production test plan
  • Per-unit results logged against serial number and firmware hash

Production workflow for this service

  1. INPUT FILES

  2. Test plan review

    Pass and fail vectors, instrument list, and acceptance ranges agreed.

  3. Fixture build or import

    Custom fixture designed and built, or your existing fixture replicated.

  4. Golden unit setup

    Reference unit calibrated and stored for line-side comparison.

  5. Per-unit test

    Unit cycled through test sequence, results captured.

  6. Defect routing

    Failed units quarantined and root-caused before retest or scrap.

  7. OUTPUT

When buyers need this

  • Your product has firmware behavior that AOI cannot validate.
  • You need RF, sensor, or analog signal verification per unit.
  • You want shipped units backed by a signed pass record.

Frequently asked questions

Do we need a written test plan?

Yes. A production test plan defines pass and fail criteria, FCT vectors, calibration steps, and serialization rules. We help draft one if your team has not written one yet, based on your firmware behavior and target field performance.

How do you handle defects and rework?

Defects flagged during AOI or functional test are root-caused and either reworked under IPC-7711/7721 procedures or scrapped depending on root cause. Failure data feeds back into DFM review for the next batch.

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.

Quote functional testing

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

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