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Gerber & BOM to finished PCBA

How We Work With Overseas PCBA Buyers

Work directly with our manufacturing team from file review to PCBA assembly and project-defined testing. Confirm the build scope before production, then carry approved decisions into repeat orders.

Before quotation

Share the files behind the build.

Send the latest revision and mark anything that is still undecided. Available files can be reviewed first; missing production data needs confirmation before manufacturing.

Full quotation file checklist
Technician comparing a printed circuit board panel with project information
Project review · Representative process photo
  • Board & assembly data

    Gerber, board specification, pick-and-place file and assembly drawing.

  • Bill of materials

    Manufacturer part numbers, packages and approved alternatives.

  • Programming & test requirements

    Firmware, test method, fixtures and acceptance criteria where required.

  • Order requirements

    Prototype or batch quantity, target schedule, packing needs and destination.

Review → Confirm → Build → Test → Repeat

Six stages. Clear decisions at each step.

The exact process depends on your design, sourcing choices and agreed testing scope. Each stage makes the next manufacturing decision clearer.

  1. 01

    Files arrive

    Start with your current project files and the intended build. Missing information is recorded before it becomes a production assumption.

    Project inputs
    Gerber, BOM, CPL / placement data and assembly requirements.
    Review focus
    Identify missing files, version differences and quotation questions.
  2. 02

    Engineering review

    Review manufacturing feasibility, BOM risk and consistency between the files supplied for the build.

    Project inputs
    Latest revision, component part numbers, board specification and test instructions.
    Review focus
    Surface manufacturing constraints, sourcing risks and open technical questions.
  3. 03

    Confirmation

    Resolve open questions and confirm component alternatives or material changes before they enter the project.

    Project inputs
    Proposed alternatives, quantity, acceptance criteria and manufacturing requirements.
    Review focus
    Agree the build scope, BOM version and project-level changes.
  4. 04

    Production

    Handle the confirmed PCB, component sourcing, SMT and required DIP / manual assembly scope.

    Project inputs
    Approved revision, BOM and assembly instructions.
    Review focus
    Build to the manufacturing requirements confirmed for this order.
  5. 05

    Verification

    Apply the inspection, programming and functional test steps defined for the project before delivery.

    Project inputs
    Firmware, fixtures, inspection plan and pass/fail criteria where required.
    Review focus
    Review results against the agreed test scope; AOI does not replace functional testing.
  6. 06

    Repeat production

    For repeat orders, bring the approved files, component choices and test scope forward into the next build.

    Project inputs
    Approved files, BOM version, test scope and prior production history.
    Review focus
    Confirm changes before repeating or scaling the build.

The physical production path

From bare PCB to packed PCBA.

Once the build scope is confirmed, these are the production steps a project may move through. The exact assembly, testing, finishing and packing requirements are agreed for each order.

  1. Printed circuit boards passing through a wet-processing line
    01

    PCB fabrication

    Confirm board material, stack-up, finish and fabrication requirements for the approved design.

  2. Component reels organized on storage racks
    02

    Components prepared

    Review the approved BOM, source parts and agree any alternatives before they enter the build.

  3. Technician working beside SMT placement equipment
    03

    SMT assembly

    Place and solder surface-mount components against the confirmed board and placement data.

  4. Hands placing through-hole components on a circuit board
    04

    Through-hole & manual work

    Add connectors and other parts that need DIP or manual assembly for this project.

  5. Circuit board aligned with a functional test fixture
    05

    Inspection & testing

    Inspect the assembly and carry out programming or functional tests where agreed for the build.

  6. Worker fitting a printed circuit board into a plastic enclosure
    06

    Finished assembly, if needed

    Fit the PCBA into its enclosure or complete other final assembly when the product requires it.

  7. Operator placing assembled boards into protective bags
    07

    Packing & shipment handoff

    Pack boards to the agreed ESD and transit-protection needs. Confirm the quantity, destination and shipment details; share tracking when available.

    • ESD protection
    • Quantity check
    • Shipment details

Representative process photos, not images of a specific Huitai order or facility. PCB fabrication and optional production steps are confirmed in the project scope.

Project communication

Discuss the updates your team needs.

Agree on the milestones and records your team needs to see while the confirmed build moves toward shipment.

  • Component purchasing status
  • Production photos
  • Inspection notes
  • Packing photos & shipment tracking

The updates and documentation included are confirmed for each project.

Questions before production.

What if some files are missing?

Share the available files and explain what is missing. Sample photos can help discussion, but do not replace the production data needed to build the board.

Can I begin with a smaller build?

Prototype and low-volume production are part of our scope. Include your intended quantity so the files, assembly and testing needs can be reviewed before a repeat order.

Does AOI confirm that my product works?

AOI reviews visible assembly conditions. Functional testing checks defined board behavior using the agreed firmware, fixture, inputs, outputs and pass/fail criteria. Confirm which checks your project requires.

Where can I check the company roles?

The company verification page identifies the customer-facing brand, manufacturing entity and commercial entity. View company verification

Your next build

Let’s start with
your project.

Share your files, quantity and testing requirements so we can review the manufacturing scope.