Inside Our PCBA Factory
Our SMT & PCBA factory in Shenzhen is purpose-built for defense and military electronics, aerospace & aviation, UAV platforms, industrial control and medical devices. With a 5,000 m² production floor, 6 SMT lines and 100+ professional assembly and test machines, we focus on high-reliability PCBAs, flight control and RF modules that support mission-critical and long-lifecycle programs. Our PCBA factory combines flexible prototyping with automotive- and defense-grade volume production.
PCBA Factory Floor Area
High-Speed & High-Precision Placement
Mixed-technology, high-reliability PCBAs
Defense · Aerospace · UAV
Industrial · New Energy · Medical
PCBA Factory at a Glance
High-Reliability PCBA & SMT Center
Location: Shenzhen, Guangdong, China Focus: SMT + THT assembly for high-reliability boards and modules Typical applications: defense & aerospace electronics, UAV flight controllers and ESCs, industrial control, medical and power electronics
Module & System Assembly Area
Focus: PCBA plus mechanical assembly for UAV, RF and power modules Highlights: flight controller stacks, ESC & RF modules, semi-finished assemblies ready for system integration
PCBA Assembly Inside Our Factory
A short video tour of our SMT lines, through-hole assembly, inspection and testing areas, showing how your high-reliability boards are assembled step by step.
How a PCBA Is Assembled in Our Factory
From incoming materials to final packing, every board in our SMT & PCBA factory follows a tightly controlled, IPC-compliant assembly flow.
Incoming Material & Component Inspection → PCB Loading → Solder Paste Printing → SPI Inspection → SMT Component Placement → Pre-Reflow Check → Reflow Soldering → Post-Reflow AOI Inspection → Through-Hole Insertion & Wave / Selective Soldering → Cleaning, Conformal Coating & Curing (If Required) → ICT / Flying Probe Test & Functional Test → Final Visual Inspection & Packing 12134535325
Incoming Material & Component Inspection
PCBs, components, solder paste and other incoming materials are checked for specifications, lot numbers and appearance to ensure they meet production and quality requirements before entering the line.
PCB Loading
Automatic loaders feed bare PCBs into the SMT production line, ensuring stable board handling and consistent line throughput.
Solder Paste Printing
Fully automatic printing machines accurately deposit solder paste onto pads through laser-cut stencils, controlling both thickness and alignment for each product.
SPI Inspection
3D solder paste inspection (SPI) checks solder paste height, volume and position, allowing issues such as bridging, insufficient paste or offset to be identified and corrected before reflow.
SMT Component Placement
High-speed and multi-functional placement machines mount chips, ICs, BGAs, QFNs and other components precisely onto their corresponding pads according to pick-and-place data.
Pre-Reflow Check
Sampling inspections focus on critical components and sensitive areas to confirm there are no wrong parts, reversed polarity or major placement shifts before the boards enter the reflow oven.
Reflow Soldering
PCBs pass through multi-zone reflow ovens where solder paste melts and then solidifies under a validated temperature profile, forming reliable and repeatable solder joints.
Post-Reflow AOI Inspection
Automated optical inspection (AOI) checks solder joint quality, tombstoning, bridging, insufficient solder, missing components and other post-reflow defects across 100% of boards.
Through-Hole Insertion & Wave / Selective Soldering
THT components such as connectors, transformers and large power devices are inserted into the PCB and then soldered in batches using wave soldering or selective soldering, with parameters tuned to avoid bridging and ensure sufficient hole fill.
Cleaning, Conformal Coating & Curing (If Required)
Flux residues and particles are removed through appropriate cleaning processes. When required by the application, conformal coating is applied and cured to improve moisture protection, corrosion resistance and insulation performance.
ICT / Flying Probe Test & Functional Test
ICT or flying probe testing first verifies opens, shorts and basic electrical parameters. Functional test (FCT) then runs firmware and test scripts on dedicated fixtures to confirm that each assembled board performs correctly under real-world operating conditions.
Final Visual Inspection & Packing
Final visual inspection confirms appearance, markings and completeness against customer documentation. Passed PCBAs are packed with ESD and shock protection and moved into finished goods storage, ready for shipment.
For more details on equipment and technical parameters, please visit PCBA Assembly Capabilities.
Manufacturing & Quality Teams Behind Every PCBA
Behind every high-reliability PCBA, there is a cross-functional team including process engineers, line supervisors, equipment technicians, quality engineers and test engineers.
Process Engineering – defines assembly process windows, stencil designs, reflow profiles and DFM/DFT guidelines.
Production – executes standard work instructions, controls daily output and applies real-time SPC on key parameters.
Quality & Test – monitors checkpoints from IQC to FQC, manages AOI/X-ray/test programs and leads 8D problem solving when needed.
How We Build Quality into the Assembly Floor
Quality is not only a final inspection step – it is built into every process in our PCBA factory.
Management systems: ISO 9001, IATF 16949, AS9100, ISO 13485, GJB 9001C-2017 and more (depending on program scope).
In-line control: SPI and AOI for all SMT steps, X-ray for hidden joints, automatic control of reflow profiles and soldering processes.
Final assurance: 100% electrical and functional testing for volume orders where required, with reliability tests available on request.
Visit Our PCBA Factory or Arrange a Remote Audit
Many industrial, medical, defense and aerospace customers start with a factory visit or audit before launching new PCBA programs. We support on-site visits, remote video tours and 3rd-party audits, including live walkthroughs of SMT lines, THT areas, test labs and reliability facilities.
World-class PCB & PCBA manufacturer focused on high-frequency and high-reliability boards for defense, aerospace, automotive and industrial electronics.
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