PCB manufacturing & turnkey assembly · Shenzhen, China · Serving global OEMs

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Philifast · Manufacturing & quality

SMT & PCB Assembly Equipment

From solder paste to inspected assemblies, our production resources support a connected build process. Seven SMT lines, two DIP lines and two manual soldering lines help us prepare the assembly route around your product.

Assembly production line shown in the FLJ PCB factory materials

Assembly resources and their role in your build

SMT equipment places surface-mount components onto prepared circuit boards. The surrounding process—printing, inspection, soldering and verification—is what turns placement into a usable electronic assembly.

These resources work with the approved BOM, board data and process instructions. Package mix, board construction, panel layout and the intended test coverage guide the actual production route.

Assembly resources and their role in your build
ResourcePublished configuration or methodManufacturing role
SMT productionSeven lines; Yamaha YRM20 placement resourcesSurface-mount component placement
Paste preparationAutomatic stencil printingApply solder paste to the intended pads
Paste inspection3D SPIReview deposits before component placement
ReflowControlled temperature and conveyor settingsForm solder joints for the selected assembly
Through-hole assemblyTwo DIP lines and wave-soldering resourcesAssemble inserted components and connectors
Manual solderingTwo manual soldering linesComplete product-specific assembly work
InspectionAOI and X-rayReview visible features and selected hidden joints

Printing and solder paste inspection

Stencil printing prepares the paste deposits that support subsequent solder joints. Alignment, stencil openings and print settings are reviewed around the pad geometry and component mix, especially where the assembly includes fine-pitch or tightly spaced features.

3D solder paste inspection provides process feedback before placement. Reviewing deposit conditions at this stage helps address printing issues while the build is still in preparation, instead of relying only on inspection after soldering.

Our team can review panel features, fiducials and assembly data with your available files. If information is missing, we discuss it with you as part of preparing the build.

Solder paste inspection equipment supporting SMT preparation

Placement and controlled soldering

Yamaha YRM20 placement resources support our SMT assembly operation. Placement preparation connects component identity, feeder setup, footprint information and position data with the intended BOM configuration.

Reflow preparation considers the solder materials, component requirements and thermal behavior of the assembly. Temperature and conveyor settings are managed as part of the process, with the chosen route reviewed for the board and package mix.

For new designs, a first-article review can help confirm component identity, orientation and assembly details before the remaining production quantity. We discuss any customer approval point alongside the production plan.

Through-hole and mixed-technology assemblies

Connectors, power parts and other inserted components can require a through-hole route alongside SMT production. Two DIP lines and two manual soldering lines support this part of our assembly scope.

Wave soldering, manual work and assembly fixtures are selected around the product’s components and mechanical constraints. Mixed-technology builds may move through several stages, with the sequence planned to protect completed work and give the inspection team access to the relevant features.

Placement, handling and rework resources

Equipment supports the agreed assembly process. We connect placement, soldering and inspection around the released board and component data.

Placement, handling and rework resources
FeatureProcess referenceHow it applies
Placement resourceYamaha YRM20FLJ’s assembly page publishes equipment accuracy ±0.025 mm; board/package acceptance is reviewed separately
Package scopeBGA, WLCSP, QFN, POPMatch the device and stencil with support and inspection
BGA reworkPublished specialized assembly supportReview removal/replacement and hidden-joint inspection for the board
Board handlingPanel, carrier and component-clearance reviewOutline, board thickness and component height determine the setup
Production planningLine resources matched to the approved buildQuantities, sourcing and assembly complexity establish scheduling; equipment speed alone is not a delivery estimate

Inspection, programming and the final handoff

AOI reviews visible assembly features, while X-ray supports selected hidden-joint inspection. Electrical and functional testing then address the checks defined for the circuit or product. These methods provide different information and can be combined into a useful verification plan.

IC programming and further product assembly can also be included in the manufacturing package. Share the firmware, test ideas or drawings you have, and we can help define the fixtures, instructions and records needed for the next stage.

For a factory or supplier review, tell us which production areas you want to discuss. We can connect the equipment conversation with the construction, package requirements and planned quantities of your actual project.

Helpful answers

Frequently asked questions

What SMT placement equipment does FLJ PCB list?

Our published factory information lists Yamaha YRM20 placement resources as part of an operation with seven SMT production lines.

Can the same build include SMT and through-hole parts?

Yes. Our assembly scope includes mixed-technology builds, using SMT, DIP and manual soldering resources around the product’s component and mechanical requirements.

Can we discuss the assembly route before all files are complete?

Yes. Send the board information, BOM and questions you have. Our team will review the available package and follow up on the details needed to prepare production.

Start with what you have

Let’s review your next build

Send your available board files, drawings or project questions. Our team will review the information and follow up with you about the next step.

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