SMT (Surface Mount Technology)
Elevating Creativity Through Premium Print and Design Services.
SMT PCB Assembly Manufacturing
OurPCB specializes in Printed Circuit Board Assembly (PCBA) using Surface Mount Technology (SMT) for precision and efficiency. SMT places compact components directly on the PCB, reducing size and weight while improving performance. With advanced technology and expertise, OurPCB delivers high-quality, reliable PCB assemblies tailored to your needs.
ISO 9001/UL Certified
PCB Assembly Specialists
97% of PCB Shipped on Time
98% of PCB Delivered to Spec
Our Services
Prototype Assembly
Fast and precise prototyping services for complex circuit board designs—ideal for R&D, pilot production, and function verification. We help you reduce development risks, validate performance early, and accelerate time-to-market.
Low-Volume Assembly
Custom solutions for small-batch PCB assembly of industrial, automotive, or IoT devices. We support flexible order quantities, engineering support, BOM validation, and quick turnaround for fast-paced product development.
Turn-Key Services
From component sourcing and PCB fabrication to assembly, functional testing, and packaging—we offer full-process PCBA manufacturing with cost control, complete traceability, and smooth, reliable end-to-end project execution.
Production Assembly
High-efficiency and scalable PCBA services for mass production. With advanced automated SMT lines, inline AOI/X-ray inspection, and MES tracking, we ensure consistent output, stable quality, and reliable delivery for large-volume needs.
High-Speed SMT for Complex PCBA Assembly
We support high-density surface mount with precise placement of 01005, QFN, BGA, LGA, and other fine-pitch components—ideal for medical, telecom, and IoT applications.
We specialize in high-speed SMT for ultra-fine components like 01005, QFN, BGA, and LGA, with placement accuracy of ±0.025mm for reliable mounting in compact PCBs.
Our production lines handle complex, multi-layer boards for industries like medical, telecom, and IoT. We support fine-pitch soldering, double-sided mounting, and mixed-technology assemblies with strict quality control.
With in-line SPI, AOI, and real-time monitoring, we detect and resolve issues during production.
Whether for low-volume projects or mass production, our SMT services ensure speed, precision, and quality.
Consistent Quality from Prototype to Mass Production
Whether you’re building 5 pieces or 50,000, we maintain strict process consistency across every stage of production. Our SMT lines are fully automated and follow standardized procedures, ensuring repeatable results regardless of volume.
Prototype boards are assembled using the same equipment, reflow profiles, and quality control steps as full-scale batches. This eliminates performance gaps between samples and production units, reducing rework risk and accelerating time-to-market.
We strictly follow IPC-A-610 Class 2 and Class 3 standards, depending on your product’s application, and enforce uniform process parameters to deliver stable, high-quality results from the first board to the last.
The SMT Manufacturing Process
The primary steps in the SMT manufacturing process include:
1. Solder Paste Printing
A solder paste printer applies paste to PCB pads using a metal stencil. The stencil aligns precisely with solder pad locations, ensuring accurate paste application.
2. Component Placement
A pick-and-place machine precisely places SMT components onto the solder paste-covered pads using X-Y coordinates from the PCB layout. Manual placement is difficult due to the small component size.
3. Reflow Soldering
The board passes through a reflow oven with four stages: Preheat (140–160°C), Soak (stabilizes heat), Reflow (210–230°C to melt solder), and Cooling (prevents thermal stress).
4. Inspection
Methods like AOI, X-ray, and visual inspection detect defects. Faulty boards undergo rework and reinspection.
Why Choose Our SMT PCB Assembly Manufacturing Services?
As a leading SMT PCB assembly manufacturer, we have nearly 20 years of experience providing high-quality PCB assembly prototyping and manufacturing. Our small-batch SMT assembly services allow you to test and validate your design before full-scale production—ensuring performance and reliability without high costs.
With over 3,000 satisfied clients, we support you from prototype to mass production, offering cost-effective solutions and fast turnaround times to help you bring your product to market efficiently. Whether you need quick-turn prototypes or high-volume SMT assembly, we deliver precision, quality, and expertise at every step.
What is the Cost of SMT PCB Assembly?
| Quantity: 5 | 50 cm² | 100 cm² | 200 cm² | 400 cm² | 600 cm² |
|---|---|---|---|---|---|
| 1-Layer | $17 | $21 | $26 | $36 | $46 |
| 10-Layer | $259 | $279 | $308 | $359 | $412 |
Your final cost will depend on how many PCB you need. Request a free online pcb quote for your project now. New customers get $100 off their first project with us!
SMT PCB Assembly Lead Time
| Number of Layers | Standard Lead Time |
|---|---|
| 1–12 Layers | Shipped within 72 hours after confirmation of files and payment |
| 12+ Layers | Shipped within 120 hours, including full CAM review and production validation |
Lead time may vary based on board complexity, special materials, and additional process requirements. Please consult our team for urgent or custom delivery options.
PCBA Assembly Services
We support high-density surface mount with precise placement of 01005, QFN, BGA, LGA, and other fine-pitch components—ideal for medical, telecom, and IoT applications.
Turnkey PCB Assembly
We handle everything from parts sourcing to final assembly, providing a hassle-free experience that ensures top-quality boards every time.
Prototype & Full Production Runs
Whether you need a few prototypes or large-volume batches, our flexible assembly services adapt to your project’s scope and timeline.
RoHS & Lead-Free Compliance
Stay environmentally responsible with our compliant assembly processes, offering RoHS and lead-free options for safe, reliable builds.
Single-Sided, Double-Sided, or Mixed
No matter the complexity, we can assemble boards of all configurations—single-layer, multi-layer, or a mix—to match your exact specifications.
Small Quantities & High-Volume Capabilities
From one-off prototypes to bulk orders, we accommodate projects of all sizes without compromising on quality or turnaround time.
Trusted by Over 3,000 Customers Worldwide
Join our growing community of satisfied clients who rely on our dependable assembly expertise and dedicated customer support.
SMT+ plug-in mixing process is completed in one stop
Support SMT patch and DIP plug-in hybrid assembly, one-stop completion of the whole board processing, eliminating the coordination of multiple factories, improve delivery and supporting efficiency.
We offer complete SMT and DIP mixed assembly services in-house, streamlining production and eliminating the need for multiple factories. From high-speed surface-mount placement to manual through-hole insertion and wave soldering, we manage the entire workflow with efficient coordination and quality control.
This integration reduces lead time, lowers logistics costs, and enhances production traceability. We ensure consistent assembly quality, synchronized process control, and unified documentation from start to finish.
Whether your design includes large power components, connectors, or a mix of SMD and THT parts, our hybrid production lines handle complex assemblies with speed, accuracy, and reliability.
Achieve high precision welding of PCBA welded circuit board to ensure the quality of each solder joint
Achieving high-precision soldering is essential for PCBA quality and longevity. We use advanced techniques like automated reflow, selective, and laser soldering to ensure secure component attachment with consistent accuracy, minimizing defects like cold solder joints and bridging.
Our process includes precise control of soldering parameters, automated inspection systems, and expert visual checks. Post-production testing, including electrical and mechanical stress tests, ensures the reliability of each solder joint.
With cutting-edge technology and expert craftsmanship, we guarantee stable performance and precision even in demanding applications.
PCB Board Process
- Component Procurement
- Preparation
- PCB Manufacture
- Make Process Flow
- Solder Printing/Wave Soldering
- SMT/Plugging
- Inspection (repair if necessary)
- AOI (repair if necessary)
- Transfer
- Manual Assembly
- Cleaning
- Wire Screw
- Inspection
- Repair If Necessary
- Final Confirmation
- Packing
- Shiping
Technical Capabilities
We offer one-stop PCBA services, including PCB manufacturing, component sourcing, and assembly. Our capabilities cover SMT assembly, THT assembly, and mixed PCB assembly (single/double-sided). We also provide services such as BGA rework, high-speed assembly (up to 60,000 chips/hour), and precision assembly down to 01005/0210 size with an accuracy of ±0.25 mil (±0.007 mm).
Our production lines support rigid, flexible, HDI, and high-speed power boards, with up to 50 layers and 60 GHz high frequencies. We offer AOI, X-ray, ICT, and FCT testing to ensure the highest quality. Our manufacturing processes adhere to international standards, including ISO 9001, ISO 13485, ISO 14001, and UL certifications for a wide range of industries including automotive, military, and consumer electronics.
Manufacturing Equipment
Our manufacturing facilities are equipped with state-of-the-art technology, ensuring precision and efficiency in every stage of the PCBA production process. With automated equipment and strict quality control measures, we can meet large-scale production demands while offering customized solutions, guaranteeing product reliability and high performance.
We would love to hear from you
It starts here
With over 40 years experience in the industry. We know a thing or two about PCB manufacturing.
If you can’t find what you are looking for, please don’t hesitate to get in touch directly.
Simply fill in the form and we will try to get back to you ASAP. Alternatively, you can call or email us on the details below.
long@custompcba.com
+86 18123721954
