QUALITY CONTROL

Quality steps documented.
Documentation matched to your project.

Quality steps can be planned from incoming components to final shipment, with inspection, testing, documentation, and traceability matched to the agreed project requirements.

QUICK ANSWER

Huitai supports PCBA inspection and testing as part of turnkey assembly projects. The process can include incoming component checks, solder paste and SMT process review, AOI inspection, visual inspection, functional testing when a test method is provided, packaging checks, and delivery preparation based on the agreed project scope.

Who this is for

Overseas hardware teams that need inspection and testing discussed before PCBA delivery
Prototype and low-volume projects where test method, acceptance criteria, or packaging must be confirmed
Industrial electronics, IoT, test equipment, and custom hardware projects with practical quality requirements

What files we need

Gerber, BOM, CPL or pick-and-place data, and assembly drawings
Test instructions, firmware, fixture notes, or pass/fail criteria when functional testing is required
Sample photos, inspection notes, packaging requirements, and shipping expectations

What we check before delivery

Incoming component markings, package integrity, and BOM match against the agreed sourcing scope
SMT process points, solder joints, polarity, orientation, AOI results, and visual inspection items
Functional test steps when the customer provides a usable method, plus packaging and shipment checks
DFM
Engineering review
Before quotation
AOI
Inspection option
For SMT builds
X-Ray
BGA inspection
When required
Test
Report options
Based on project needs
Incoming component check for PCBA assembly before SMT production
01
IQC
INCOMING QUALITY CONTROL
QC STAGE 01

Incoming components checked against the agreed sourcing scope.

Incoming component checks are planned against the BOM and sourcing scope. Available checks can include date codes, packaging integrity, markings, and physical dimensions. Authorized and franchised channels are prioritized, and other sourcing options require customer approval.

Approved sourcing options
Date-code verification
Physical dimension check
Package integrity inspection
Anti-static handling
Traceability records when required
AOI inspection for assembled PCBA boards before functional testing
02
Automated
AOI — AUTOMATED OPTICAL INSPECTION
QC STAGE 02

Automated optical inspection after SMT assembly.

AOI can be used after reflow soldering to scan for missing components, misalignment, solder bridges, polarity errors, and lifted pins. Boards with AOI issues are reviewed by a QC operator before rework or release.

AOI process available
Missing component detection
Solder bridge detection
Polarity verification
Component misalignment
Operator review
X-Ray inspection review for hidden solder joints on PCBA boards
03
X-Ray
X-RAY INSPECTION
QC STAGE 03

Hidden solder joints can be inspected with X-Ray.

BGAs, QFNs, LGAs, and other bottom-terminated components cannot be fully inspected visually. X-Ray inspection can be planned for hidden joints when required by the package, risk level, and agreed inspection scope.

BGA ball array verification
Void review when required
Hidden joint inspection
QFN / LGA / CSP support
Defect review options
Images or reports by agreed scope
Functional testing setup for assembled PCBA boards with customer test method
04
Test Plan
FUNCTIONAL TESTING
QC STAGE 04

Boards can be powered on and verified against your spec.

We perform functional testing using your test specification, test fixture, or firmware. Boards are powered up and tested for signal integrity, peripheral communication, power consumption, and custom pass/fail criteria. A test report can be provided based on project requirements.

Power-on verification
Signal integrity check
Oscilloscope measurement
Custom test fixtures
Firmware loading
Pass/fail logged per unit

PCBA inspection and testing FAQ

What quality checks are used before PCBA delivery?

Quality checks can include incoming component review, SMT process checks, AOI inspection, visual inspection, functional testing when a method is provided, packaging checks, and shipment preparation based on the agreed scope.

Do you perform AOI inspection?

AOI inspection can be used for suitable SMT assembly projects to check missing components, misalignment, solder bridges, polarity issues, and other visible assembly defects before release.

Can Huitai support functional testing?

Yes. Functional testing can be discussed when the customer provides a test method, firmware, fixture requirements, communication steps, pass/fail criteria, or acceptance notes.

What test information should customers provide?

Useful test information includes test instructions, fixture drawings or photos, firmware, power requirements, communication protocol, expected readings, and pass/fail criteria.

How are finished PCBA boards packed before shipping?

Finished boards are packed according to the agreed project needs, with attention to ESD handling, board protection, labeling, quantity separation, and delivery preparation before shipment.

Want to discuss your quality requirements?

Tell us your inspection notes, test method, firmware, fixture needs, and any custom acceptance criteria. We'll confirm what's covered in the agreed process and what needs a custom setup.

Send us your requirements →
Chat on WhatsApp