PCB Component Assembly Services
For Prototypes & Production Runs
WellPCB provides precision-engineered PCB component assembly services supporting SMT, mixed assembly, through-hole, and advanced fine-pitch IC packages. Our streamlined PCB assembly process offers both turnkey and consigned component options with certified quality standards for reliable PCB assemblies and fast delivery.
- Â ISO 9001, IPC-A-610 Class 3, RoHS & Lead-Free compliance
- Single/double-sided SMT and through-hole assembly
- Full turnkey or consigned component options
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ISO9001 ISO13485
ISO14001
IATF
16949
IPC-A-610H International
Certification
Fully Automated
AOI Inspection
Serving Multiple
Electronics Markets
WellPCB provides PCB component assembly solutions for industries requiring precision, reliability, and flexibility, including automotive, industrial automation, telecommunications, consumer electronics, and medical devices. Our PCB assembly process supports custom PCB design requirements and diverse component placement needs, enabling the assembly of printed circuit boards that meet strict environmental, mechanical, and electrical standards across all applications.
Advanced Component Assembly Capabilities
Our assembly services support a comprehensive range of fine-pitch IC packages, including BGAs, POPs, CGAs, QFNs, DFNs, and CSPs. These advanced packages enable higher component density and compact PCB designs, supporting complex electronic functions in smaller form factors. Our PCB assembly process utilizes advanced pick-and-place machines operating at 60,000 components per hour with assembly tolerances under ±30µm, ensuring precise component placement even for the most demanding applications.
Our PCB Component Assembly
Services and Capabilities
We offer single and double-sided SMT assembly, mixed assembly combining surface mount and through-hole components, and cable component assembly
support for integrated electronic systems. SMT, through-hole, and mixed assembly methods support two-sided PCB designs and components mounted on circuit boards that require different assembly techniques for large components and small components.
SMT supports higher component density and faster automated assembly. THT provides stronger mechanical connections for components exposed to vibration or mechanical stress.
Our PCBs can range from 50mm × 50mm to 610mm × 508mm, with PCB thickness options between 0.5mm and 4.5mm. This flexibility supports varied spacing, component density, and mechanical requirements across multiple applications.
Our pick-and-place machine systems operate at up to 60,000 components per hour with placement accuracy of less than ±30µm, supporting fine pitch assembly down to 0.15mm for QFPs and 0.2mm for BGA packages. This tight accuracy reduces the risk of misaligned components, improving circuit reliability and minimizing rework costs.
We provide turnkey sourcing from authorized distributors (Arrow, Avnet, Mouser, Digi-Key, Element14) or accept consigned PCB parts supplied by customers. This ensures the use of approved, high-quality electronic components and reduces lead time throughout the assembly process.
Our PCBA services support BGA, POP, CGA, QFN, DFN, and CSP packages. Components are mounted onto the surface or through-hole areas of the PCB using precise assembly techniques validated through the entire PCB assembly process. These package types are selected based on application needs, balancing size, heat dissipation, and electrical performance.
We offer a variety of surface finishes, including ENIG, HASL, OSP, immersion silver, and immersion tin. These finishes provide excellent solderability, corrosion resistance, and compatibility with both leaded and lead-free assembly processes.
We accept Gerber files, BOMs, and PCB design documents. Our engineering team reviews design and assembly requirements, offers DFM feedback, and customizes PCB component assembly based on the required components and electronic circuit design.
Our assembly process begins with prototype runs and scales to full production, accommodating low to high-volume PCBs with consistent quality and fast turnaround.
Why Choose WellPCB as Your PCB
Component Assembly Specialist?
Engineering Support and DFM Review
High-Speed Pick-and-Place Systems
Precision Assembly Tolerances
Authorized Component Sourcing
Flexible Volume and Delivery Options
Traceability and Industry Certifications
Industries We Serve with PCB
Component Assembly
Automotive Electronics
PCB assemblies for engine control units, battery management, ADAS, infotainment, and high-vibration applications requiring through-hole and SMT assembly with advanced solder mask technologies.
Industrial Automation
Printed circuit boards and PCBA solutions for robotics, motor controls, power supplies, and interface systems, where the manufacturing process requires high mechanical durability and precise component placement.
Telecommunications
PCB assemblies supporting RF, signal processing, and high-speed networking, using fine pitch SMT assembly and controlled impedance PCB design for signal integrity.
Medical Devices
SMT and through-hole assembly for diagnostic equipment, monitoring devices, and implantable electronics requiring strict quality control, reliable PCB manufacturing, and soldering process precision.
Consumer Electronics
Two-sided PCB boards and mixed assembly for compact devices requiring higher component density, flexible volume production, and fast turnaround.
Aerospace
PCB assemblies built to withstand extreme temperature, vibration, and mechanical stress, using advanced assembly techniques, solder mask optimization, and rigorous testing protocols.
PCB Component Assembly
Processes and Testing
WellPCB applies advanced assembly processes and rigorous testing protocols to maintain the quality, reliability, and performance of PCB assemblies. Our manufacturing process integrates automated assembly, inspection, and testing methods to confirm accuracy, functionality, and long-term durability.
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How to Order Your PCB Component Assembly
in 5 Easy Steps
PCB Manufacturing and Order Review Process
Submit Your PCB Design
Upload your Gerber files or use our easy online PCB design tool to create your board layout. Make sure your files are complete and correctly formatted to ensure smooth processing and production accuracy.
Select Your PCB Specifications
Customize your order by choosing the technical specifications—number of layers, board dimensions, thickness, copper weight, solder mask color, surface finish, and more. Our intuitive interface helps you configure everything based on your project’s needs.
Get an Instant Quote
Once your design and specs are in place, you'll receive a transparent, instant quote. Pricing updates in real time as you modify options, so you can adjust your selections to match your budget before placing the order.
Confirm Order & Make Payment
Review your entire order for accuracy, including file previews and selected specs. After confirmation, proceed to secure checkout and choose your preferred payment method. You’ll receive an email confirmation with order details.
Production & Delivery
Your PCB moves into production immediately. We’ll keep you updated throughout the manufacturing process. Once completed, your boards are carefully packed and shipped to your door, with tracking information provided for your convenience.
WellPCB is trusted by millions of
businesses and innovators.
Why Choose WellPCB as Your Wire Harness Manufacturer?
WellPCB stands out among USA wire harness manufacturers by delivering superior quality, advanced solutions, and unmatched reliability. With years of experience serving global markets, WellPCB has earned a reputation as one of the top wire harness manufacturers in the USA.
WellPCB specializes in custom wire harnesses for complex electronic and industrial applications. You can order these assemblies with $100 off using our special offer—delivering high-quality, tailor-made harnesses at competitive rates for your most demanding projects.
Hommer Zhao
Founder and Chief Editor – Hommer Zhao
Welcome! I’m Hommer Zhao, the founder and Chief Editor of WellPCB. With years of experience in the PCB industry, I’m committed to making sure our content is both accurate and helpful. We’re proud to serve a growing community of over 4,000 customers worldwide, and our goal is to provide you with the best resources and support. Your satisfaction is our top priority, and we’re here to help you every step of the way!
Jesse Holland
Technical Manager – Jesse Holland
Hi, I’m Jesse Holland, an Engineer and Technical Manager at WellPCB. With years of experience in PCB design and engineering, I’m here to ensure that every project we work on meets the highest technical standards. I lead our team, focusing on precision and innovation, collaborating closely with clients to provide tailored solutions and expert guidance. Whether you’re facing a complex design challenge or need advice on technical aspects, I’m here to ensure your project is a success from start to finish.
Nathan Jensen
Purchasing Manager – Nathan Jensen
Hi, I’m Nathan Jenson, the Purchasing Manager at WellPCB. I’m responsible for sourcing the best materials and components to ensure our products meet the highest quality standards. With my extensive experience in procurement, I work closely with suppliers to secure reliable and cost-effective solutions while maintaining strong relationships to support our operations. I aim to ensure every project runs smoothly by providing the resources needed to deliver on time and to your satisfaction.
Emma
Sales Manager – Emma
Hey, I am Emma, sales manager at WellPCB. I studied electronic science and technology at university and have served customers for PCB and PCB Assembly service for several years.

I enjoy communicating with customers and our technicians to solve problems, and customers always say, "It's great to have you onboard".

It is my pleasure and honour to be helpful. Contact me now, and you'll know.
Bella and Cassiel
Sales Representatives – Bella and Cassiel
We’re Bella and Cassiel, your dedicated sales representatives at WellPCB. With our extensive knowledge of the PCB industry, we’re here to provide exceptional service and support. We take the time to understand your unique needs and are always ready to offer tailored solutions and advice. Whether you need product recommendations, assistance with your orders, or simply have a question, we’re here to ensure your experience is smooth and seamless at every step.
Mandy and Wendy
Sales Representatives – Mandy and Wendy
We’re Mandy and Wendy, your friendly sales representatives at WellPCB. Passionate about helping our customers, we bring a wealth of experience in the PCB industry to provide you with the best solutions and service. We take pride in building strong relationships with our clients, understanding their specific needs, and offering personalised support to ensure their satisfaction. Whether you’re looking for advice, product information, or assistance with any part of your order, we’re here to make your experience as smooth and efficient as possible.
Our Team
Our skilled engineers and technicians bring expertise and precision to every PCB assembly project. Committed to quality, efficiency, and innovation, our team ensures every order meets the highest UL, IPC, ROHS & REACH standards, delivering reliable solutions tailored to your needs.
- Founder and Chief Editor – Hommer Zhao
- Technical Manager – Jesse Holland
- Purchasing Manager – Nathan Jensen
- Sales Manager – Emma
- Sales Representatives – Bella and Cassiel
- Sales Representatives – Mandy and Wendy
Case Studies
PCB Specifications
- Layers: 8
- Board Thickness: 1.8mm
- Min. Line Width/Space: 3/3.5 mil
- Min. Hole Size: 0.2mm
- Min. Distance from Hole to Line: 0.13mm
- Inner Layer Copper: Hoz
- Outer Layer Copper: 1oz
- Surface Finish: Immersion Gold
The final board met all mechanical and electrical tolerances and passed electrical testing with 100% yield. This project shows our capabilities to handle complex, high-density multilayer PCBs with tight tolerances and strict quality standards.
Project Details
- Service Type: PCB Assembly
- Location: Italy
- Client Type: PCB Design Company
- Total Units: 20
- Lead Time: Rapid turnaround for prototyping
- Assembly Type: SMT+THT mixture assembly
Our experienced production team worked closely with the client to verify the BOM, optimize the stencil and the board’s layout design. We completed and delivered 20 fully assembled units within the expected lead time, allowing the client to avoid delays and meet their customers’ delivery window. This case highlights our capabilities to support global clients with flexible, low-volume PCB assembly solutions.
Project Details
- Service Type: Custom Automotive Wire Harness
- Location: New York, USA
- Client Type: Auto Repair Shop
- Quantity: 10,000 Units
Our team followed strict quality guidelines throughout production, using automotive-grade connectors and insulation materials. The order was completed on schedule with no reported defects, supporting the client’s rollout without interruption. This case shows our comprehensive capabilities in large-scale production, customized solutions, quality control and efficient delivery.
PCB Component Assembly: Client Feedback
As an R&D manager, I have had an outstanding experience working with WELL-PCB. For many years, our company has entrusted them with the production, assembly, and programming of the boards developed in our R&D unit, and they have consistently exceeded our expectations.
Hamid Reza Moshayedi
R&D Manager
Their work is very impressively perfect. Today, when they check our company PCB board after assemble. They found a fake short point which many engineers has never found in the past years. But that is just designed so. The PCB board quality is excellent. Their service is also excellent.
MikeZ
My friend introduced WellPCB to me, the first try, a little look forward to. I ordered a 47*72 10ps PCB, and I can’t wait to receive my PCB. So I used expedited service and received my PCB in three days. I tested and soldered the PCB, Quality is really good, silkscreen, plating also great.
Warren Cliton
PCB Component Assembly | FAQs
What PCB design files do you accept for component assembly?
We accept industry-standard Gerber files, BOMs, and PCB design documents, including Altium Designer, Eagle, and KiCad formats.
What is the minimum pitch and placement accuracy you can support?
We support fine pitch placement down to 0.15mm for QFPs and 0.2mm for BGAs, with a pick-and-place machine accuracy of less than ±30µm. This enables precise placement and soldering process control for high-density PCB designs and advanced integrated circuits, reducing placement errors and improving product reliability.
How do you manage moisture-sensitive components during assembly?
Moisture-sensitive devices (MSDs) are stored in humidity-controlled dry cabinets before assembly. During the board assembly process, components are tracked using MSL ratings and, if needed, baked at controlled temperatures to remove absorbed moisture before the reflow process. This prevents soldering defects such as popcorning and delamination.
Can you assemble boards with conformal coating applied?
Yes. Conformal coating can be applied to bare PCB boards before assembly in cases where specific coating is required or after assembly using masking to protect components and connectors. Our process involves verifying the compatibility of coating materials with the solder mask and ensuring that critical areas remain accessible for testing and inspection.
What common assembly defects do you prevent?
We prevent common defects such as tombstoning, where small components lift during soldering, bridging caused by excess solder connecting adjacent pads, and cold solder joints that result from insufficient heat during the reflow process. Our inspection and testing processes are designed to detect and correct these issues early, improving yield and final product reliability.
What design considerations improve assembly success?
We recommend clear component spacing, consistent pad sizes, and thermal relief for heat-sensitive areas to improve assembly success. Our engineering team offers DFM reviews to identify potential challenges in the design stage, helping to avoid common issues like poor solder joint formation or component misalignment during assembly.
How does PCB assembly work from start to finish?
The PCB assembly process starts with applying solder paste to the bare board using a precision stencil. Components are then placed by high-speed pick-and-place machines. The board moves through reflow soldering, where controlled heating permanently attaches the components. After soldering, automated inspections (SPI, AOI, and X-ray) verify component placement, solder quality, and detect any defects. Finally, electrical and reliability testing confirm functionality before delivery.
WellPCB: Your One-Stop PCB Component Assembly Solution
WellPCB delivers precision PCB component assembly, reliable manufacturing processes, and full PCBA services backed by engineering support, traceability, and fast delivery to meet your project requirements.
