Turnkey PCB Assembly Solutions
Years Experience
PCBA first-pass yield
Prototype
X-Ray & AOI testing
PCB Assembly Support for Diverse Industries
From prototypes and NPI builds to repeat production, LEADHUI PCB supports PCB assembly projects with different reliability, component, testing, and documentation requirements.
LED & Lighting
PCB assembly for LED drivers, lighting controllers, display modules, smart-lighting products, aluminum PCBs, and thermal-management applications.
LED polarity checks, power-on testing, and aluminum PCB assembly support
Automotive Electronics
PCB assembly support for vehicle control modules, charging equipment, lighting systems, battery management, displays, and aftermarket electronics.
High-reliability assembly and traceability support upon project review
Consumer Electronics
Efficient SMT and mixed-technology assembly for smart devices, wearables, home electronics, audio products, accessories, and compact consumer products.
Prototype-to-production flexibility for fast product iteration
Industrial Automation
PCB assembly for PLC-related products, motor controllers, sensors, HMIs, instrumentation, factory-control systems, and industrial power boards.
Support for mixed SMT and through-hole assembly
New Energy
Manufacturing support for battery management systems, energy-storage controls, charging equipment, solar electronics, and power-conversion boards.
Heavy-copper, thermal-management, and high-current design support
Computing & Data Devices
Assembly for embedded computers, server-related modules, storage devices, power boards, peripheral equipment, and high-density digital electronics.
BGA, QFN, fine-pitch, and multilayer PCB assembly support
Medical Electronics
PCB assembly support for diagnostic devices, monitoring equipment, laboratory instruments, portable healthcare products, and medical accessories.
Project-specific inspection, documentation, and test requirements supported
IoT & Smart Devices
Assembly for wireless modules, smart-home products, sensors, trackers, gateways, environmental monitors, and connected control devices.
Compact PCB assembly for rapid validation and production scalingWhat We PCB Assemble
SMT Assembly
High-speed surface mount assembly across 4 advanced automated lines. Equipped with nitrogen reflow ovens with 10-12 controlled temperature zones.
Full Turnkey Assembly
End-to-end supply chain management including high-quality PCB fabrication, components sourcing from authorized distributors, assembly, and final logistics.
Prototype Assembly
Rapid prototyping designed for engineering validation. Free DFM & DFA (Design for Assembly) review included to ensure smooth mass production later.
BGA & CSP Assembly
Specialized placement of fine-pitch BGA, micro-BGA, and CSP chips. Supported by custom reflow profiling to prevent voiding and ensure strong solder joints.
Flex & Rigid-Flex
Expert handling protocols for flexible polymer substrates. Utilizing custom matrix baking fixtures to prevent warping and control bend radius integrity.
Box Build Integration
Complete system integration including custom enclosure assembly, wire harness, cable routing, final firmware programming, and full functional validation.
Testing Services
Multi-layered quality assurance frameworks. Every batch undergoes rigorous testing including AOI, In-Circuit Testing (ICT), and custom Functional Testing (FCT).
Conformal Coating
Automated selective coating for boards operating in harsh environments. Protects against moisture, salt spray, dust, and electrical leakage.
PCB Assembly Capabilities for Prototypes & Production
PCB Assembly Capabilities
Capability Specification / Description Assembly Technologies SMT Assembly, Through-Hole Assembly, Mixed Technology Assembly Assembly Side Single-Sided and Double-Sided Assembly Production Volume Prototype, Engineering Sample, Pilot Run, Small Batch, Batch Production Minimum SMD Package 0402 / 0201 available upon engineering review Fine-Pitch Component Pitch 0.5 mm / 0.4 mm pitch components available upon engineering review IC Package Support SOP, SOIC, SOT, QFP, QFN, DFN, LGA, BGA available upon review BGA Assembly BGA assembly available upon engineering review; X-ray inspection recommended or required Through-Hole Components DIP ICs, pin headers, terminal blocks, relays, transformers, switches, connectors, electrolytic capacitors Soldering Process Reflow soldering, wave soldering, manual soldering, lead-free soldering PCB Types for Assembly FR4 PCB, multilayer PCB, aluminum PCB, LED PCB, custom PCB Value-Added Services
Service Specification / Description Component Procurement Full turnkey, partial turnkey, and consigned components BOM Review MPN check, package check, quantity check, reference designator check, component availability check Alternative Components Alternative part suggestions available when original parts are obsolete, unavailable, or have long lead times SMT Parts Packaging Cut tape, partial reel, full reel, tube, tray Stencil Preparation Laser-cut SMT stencil prepared according to solder paste layer and assembly requirements [Confirm] IC / MCU Programming Programming support available when firmware, tools, interface definition, and instructions are provided Functional Test Support Power-on test, signal test, interface test, firmware verification, and customer-defined test procedures available upon request Conformal Coating Available for applications requiring protection against moisture, dust, corrosion, or harsh environments Final Assembly Support Connector installation, wire assembly, heatsink installation, simple mechanical assembly available upon review Packaging ESD bag, tray, bubble wrap, carton, custom label, export packaging PCBA Testing & Quality Control
Testing / QC Method Specification / Description Engineering Review Gerber, BOM, CPL, footprint, polarity, package matching, panelization, and assembly feasibility review First Article Inspection First assembled board checked against BOM, assembly drawing, polarity, placement, soldering quality, and customer requirements SPI Solder paste inspection for paste volume, height, area, alignment, and bridging before component placement AOI Inspection Inspection for missing parts, wrong parts, polarity errors, misalignment, tombstoning, solder bridges, and insufficient solder X-Ray Inspection Available for BGA, QFN, DFN, LGA, and hidden solder joint inspection upon project requirements Electrical Test Short/open check and basic circuit connectivity verification available according to project requirements Functional Test Customer-defined functional test, power-on test, interface test, signal test, or firmware verification available upon request Aging / Burn-In Test Available for selected products or customer-defined reliability testing requirements Final QC Appearance, quantity, labeling, packaging, revision, and customer specification check before shipment Quality Standard Assembly quality can be controlled according to customer requirements and applicable IPC workmanship standards
Why Choose LEADHUI PCB
One-Stop PCB Assembly Service
From PCB fabrication and component sourcing to SMT assembly, through-hole assembly, inspection, testing, and shipment, LEADHUI PCB provides a streamlined PCBA manufacturing solution to reduce coordination time and simplify your supply chain.
Flexible Support (PCBA Prototype to Production)
Whether you need a few prototype boards for design validation or batch production for market delivery, we support different order volumes with flexible assembly options, including full turnkey, partial turnkey, and consigned assembly.
Free DFM Engineering Review Before Production
Our engineering team reviews Gerber files, BOM, CPL files, component polarity, package matching, and assembly requirements before production to help identify potential risks early and improve manufacturability.
Turn-Key Component Sourcing & Management
For turnkey PCB assembly projects, we help source components based on your BOM and project requirements. We can also support approved alternatives when parts are unavailable or have long lead times, helping reduce sourcing delays.
Strict PCBA Quality Control & Inspection
Quality checks can include incoming material inspection, first article inspection, AOI inspection, visual inspection, electrical testing, and functional testing according to customer requirements, helping ensure stable and reliable PCBA delivery.
Clear Communication & Fast Project Response
From quotation to delivery, our team provides timely communication, file feedback, order updates, and engineering support, helping customers keep PCB assembly projects moving smoothly.
Certifications & Standards
Our assembly facility and processes are certified to the most demanding international quality, environmental, and industry standards.
PCB Assembly FAQs
What is PCB assembly?
PCB assembly, or PCBA, is the process of mounting and soldering electronic components onto a bare printed circuit board to create a functional electronic module.
What files do I need for PCB assembly?
You usually need Gerber files, BOM, CPL or pick-and-place file, and assembly drawings. If testing or programming is required, please also provide test instructions or firmware files. See our full PCBA file requirements guide
Can LEADHUI PCB source components for my project?
Yes. We can support turnkey and partial turnkey PCB assembly. You can also provide your own components for consigned assembly.
Do you support LED PCB assembly?
Yes. LEADHUI PCB supports LED PCB and aluminum PCB assembly for lighting products, LED modules, driver boards, and related electronic applications.
Can you assemble both SMT and through-hole components?
Yes. We support SMT assembly, through-hole assembly, and mixed assembly depending on your design.
Can I order prototypes before mass production?
Yes. We recommend starting with prototypes or small-batch assembly before moving to larger production quantities.
Do you provide testing?
Testing can be arranged according to your project requirements. Please provide your test method, test fixture details, or functional test procedure when requesting a quote.
Does LEADHUI PCB offer full turnkey services?
Yes, we offer comprehensive turnkey solutions that cover PCB manufacturing, component sourcing, PCB assembly, and final testing. This all-in-one service allows us to manage your entire project, from design files to the finished product, optimizing your supply chain, shortening lead times, and ensuring consistent quality. Simply share your project details with us, and our team will provide a customized solution for you.