Assembly Testing
PCB assembly testing and inspection
A board that was never tested is not finished, it is just assembled. Test coverage is agreed in the quote: what is inspected, what is measured, what is powered up. The records ship with the boards.
Test and inspection capability
| Parameter | Scope |
|---|---|
| Visual | 100% AOI on every assembled side, plus manual inspection at first article |
| X-ray | 2D X-ray for BGA, QFN and LGA voiding and bridging |
| Electrical | Flying probe or bed-of-nails ICT against netlist or ICT program |
| Functional | FCT to your test plan; jig supplied by you or built to quote |
| Environmental | Burn-in and temperature soak on review; duration set by your plan |
| Programming | In-circuit firmware loading with verification log per serial number |
| Records | Per-lot test report, defect Pareto and AOI images retained and released on request |
Choosing coverage
AOI catches process
Placement, polarity and solder shape defects. It is the baseline on every build and it is never optional.
ICT catches nets
Shorts, opens and wrong values across the board. Worth it once volume or net count makes visual checking unreliable.
FCT catches design
Whether the board does its job powered up. It needs your plan or jig, and it is the only test the end customer feels.
What we need from you
Test plan
Pass and fail criteria, test points and sequence. A one-page plan is enough to quote coverage.
Netlist or IPC-D-356
Required for flying probe and ICT program generation; exported straight from your CAD tool.
Firmware and jig
Binary with version and load procedure, and the jig if one already exists in your lab.
Testing FAQ
- Is AOI included in the assembly price?
- Yes. 100% AOI on assembled sides is part of the standard process, not an upsell.
- Can you build the functional test jig?
- Yes, quoted separately as tooling from your test plan and connector list. It stays yours and is reused on later releases.
- What happens to boards that fail?
- Failures are reworked and retested, or held for your decision when the root cause looks like a design issue rather than a process one.
- Do I get the raw test data?
- Yes. Per-lot reports come with the shipment, and AOI images or measurement logs are available on request.
Agree the test coverage up front
Send your test plan or tell us the risk you care about; the quote states the coverage and the records you receive.