SMT assembly line

Capabilities / PCBA Assembly

Full-Spectrum PCB Assembly —
SMT, THT & Box-Build

8 high-speed SMT lines running 24/6. 01005 passives through BGA/QFN. IPC-A-610 Class 2/3. IATF 16949 & ISO 13485 certified. Free assembly DFM review — we validate your BOM, placement, and paste stencil before the first component is placed.

8SMT Lines
200KCPH Per Line
01005Smallest Component
0.25mmBGA Pitch
IATF 16949
ISO 13485 Medical
ISO 9001:2015
IPC-A-610 Class 2/3
100% AOI + X-Ray
Free DFM Review

Every Process. Every Package.

01005–BGA

Component Range

From 01005 (0.4×0.2mm) chip components to large BGAs (>55mm), QFNs, CSPs, LGAs, and PoP (Package-on-Package). Fine-pitch down to 0.25mm BGA and 0.3mm QFP. Connectors, relays, transformers, and shielded modules.

200K CPH/Line

Placement Speed

High-speed modular SMT lines with dual-lane capability. Up to 200,000 components per hour per line. Automatic changeover reduces downtime between batches. Suitable for both high-mix low-volume and mass production runs.

1,200×510

Max Board Size (mm)

Standard PCB size up to 510×460mm. Extended rail up to 1,200×510mm for LED strips and backplanes. Board thickness 0.3mm–6.0mm. Panel up to 600×800mm with fixture support for over-sized assemblies.

3

Soldering Technologies

SMT reflow — 10-zone oven, N₂ atmosphere, ±1.5°C profile control. Wave soldering — dual-wave for mixed-technology boards. Selective soldering — nozzle-based for through-hole on double-sided SMT. Lead-free (SAC305) or leaded (Sn63Pb37).

IPC Class 3

Workmanship Standard

IPC-A-610 Class 2 as standard for commercial/industrial products. Class 3 for aerospace, medical, and automotive. IPC J-STD-001 for soldering process. ANSI/ESD S20.20 ESD control.

Free

DFM & BOM Validation

Every order includes a free assembly DFM review. We validate footprint-to-package match, paste stencil aperture, polarity/orientation, component spacing, and BOM part number cross-reference before production start.

Assembly Process Flow

1

Solder Paste Printing

Laser-cut stencil (0.08–0.2mm). Automatic paste inspection (SPI). 100% area coverage check per pad.

2

Pick & Place

High-speed & fine-pitch placement. Vision alignment. Real-time component verification. Feeder and reel traceability.

3

Reflow Soldering

10-zone profile. N₂ atmosphere. ±1.5°C per zone. Ramp-soak-spike to J-STD-020. Post-reflow cooling control.

4

AOI Inspection

3D AOI on every board after reflow. Solder joint quality, bridging, tombstoning, lifted leads. Automatic pass/fail.

5

Test & Conformal Coating

ICT, FCT, flying probe. X-Ray for BGA/QFN. Conformal coating. Final QA before packaging.

Complete Assembly Specifications

ParameterStandardAdvanced
SMT Lines8 high-speed linesDedicated NPI line for prototypes
Placement SpeedUp to 200,000 CPH / lineDual-lane, concurrent placement
Smallest Component0201 (0.6×0.3mm)01005 (0.4×0.2mm)
Largest Component55×55mm BGAOn request
Fine-Pitch BGA0.25mm pitch minimum
Fine-Pitch QFP/QFN0.3mm pitch minimum
Board Size50×50mm–510×460mmUp to 1,200×510mm (extended rail)
Board Thickness0.8mm–3.2mm0.3mm–6.0mm
Solder TypeSAC305 (Pb-free), Sn63Pb37 (leaded)
Stencil Thickness0.1–0.15mm laser-cut SS0.08–0.2mm, stepped stencils
Reflow Zones10-zone, N₂ atmosphere
Wave SolderingDual-wave, lead-free
Selective SolderingNozzle-based, programmed per board
Conformal CoatingAcrylic, silicone, polyurethane. Selective spray + manual touch-up
Potting / EncapsulationEpoxy, silicone, polyurethane. Vacuum degas available.
WorkmanshipIPC-A-610 Class 2IPC-A-610 Class 3 / J-STD-001 Space
ESD ControlANSI/ESD S20.20, full ESD flooring & grounding

Inspection & Testing

SPI

Solder Paste Inspection on every print. 3D volumetric measurement. 100% pad coverage. Catch stencil issues before placement — no rework downstream.

3D AOI

Automatic Optical Inspection on every board after reflow. 3D solder joint profiling. Bridging, tombstoning, lifted leads, missing components. Automatic pass/fail with human review on borderline cases.

X-Ray

2D/3D X-Ray for BGA, QFN, and hidden joints. Void detection, solder ball integrity, bridging under packages. Mandatory for Class 3 assemblies. Programmable inspection paths per board design.

ICT

In-Circuit Test — bed-of-nails fixture per design. Component value verification, open/short detection, polarity check. Fixture design and fabrication in-house. Flying probe available for low-volume / prototype.

FCT

Functional Circuit Test — powered-on board exercising real operating conditions. Custom test jig per product. Firmware flashing, calibration, and burn-in available. Full test report with every shipment.

Micro-Section

Cross-section analysis for process validation and failure analysis. Microscope to 500×. Solder joint IMC layer verification. Included with NPI runs. On-demand for production QA sampling.

Box-Build Integration

From PCB to Packaged Product

Assembly doesn't stop at the board. Our box-build service integrates PCBA into enclosures, cable harnesses, and finished products — tested, labeled, and retail-ready. We manage the full assembly chain, so you receive a product that's ready to ship to your customer or warehouse.

  • Enclosure assembly — mechanical integration into your custom or off-the-shelf enclosure
  • Wire harness & cable assembly — crimped, soldered, and labeled to your wiring schedule
  • Firmware flashing & provisioning — programmed per device with unique IDs / MACs / keys
  • Functional test & burn-in — powered-on testing per your test plan, burn-in cycles optional
  • Labeling, serialization & packaging — barcode/QR, retail packaging, drop-ship ready
Box-build assembly

Conformal Coating & Protection

01

Acrylic (AR)

General-purpose. Good moisture & fungus resistance. Easy rework. Widely used in consumer, industrial, and IoT products.

02

Silicone (SR)

Wide temperature range (-65 to +200°C). Excellent for automotive under-hood and aerospace high-temp environments.

03

Polyurethane (UR)

Excellent chemical & abrasion resistance. Fuel and solvent resistant. Common in industrial and harsh environments.

04

Parylene (XY)

Vapor-deposited nano-coating. Ultrathin (0.1–25µm), pinhole-free. The gold standard for medical implants and mil/aero electronics.

SMT Line Configuration

StationEquipmentCapability
Solder Paste PrinterDEK Horizon 03iX / EKRA X5±12.5µm alignment @ 2 Cpk. 2D + 3D SPI integration. Automatic stencil cleaning.
High-Speed PlacerYamaha YSM40R / ASM SIPLACE TX2Chip shooter: 01005–1005 at 200K CPH. 8× vision alignment. Dual-lane parallel placement.
Fine-Pitch PlacerYamaha YSM20WR / ASM SIPLACE SX2IC placer: BGA, QFP, QFN, CSP. 0.25mm BGA pitch. POP capable. ±15µm placement accuracy.
Reflow OvenHeller 1913 Mk5 / ERSA Hotflow 3/2010 zones, N₂ atmosphere. ±1.5°C ΔT. Dual-lane capable. Vacuum soldering option for void reduction.
AOIKoh Young Zenith 2 / Mirtec MV-63D AOI with AI classification. 100% coverage in 4 angles. 25µm resolution. Real-time SPC.
X-RayNikon XT V 160 / Nordson Dage Quadra 52D/3D X-Ray. Automatic void analysis. BGA/QFN/LGA inspection. 0.5µm feature detection.
Conformal CoatingNordson Asymtek Select Coat SC-350Selective spray + needle dispense. Programmable per-board. UV-cure option.

Send Your BOM & Gerber Files for a Free Assembly DFM Review

Upload your BOM (Excel or CSV), Gerber files, and assembly drawing. We'll return a full DFM report — component availability check, footprint validation, and placement feasibility — all within 24 hours.