Full-Service PCB Contract Manufacturing
for Reliable, Scalable Assembly Builds
WellPCB is a global PCB assembly contract manufacturer and OEM contract wire harness supplier providing comprehensive contract manufacturing of PCB assemblies for OEMs, startups, and design teams. We operate four certified PCB manufacturing and assembly facilities supporting prototype to volume circuit board contract manufacturing.
- Turnkey PCB assembly with in-house sourcing, soldering, and quality control.
- Fast-turn PCBA builds, including SMT and through-hole, in as little as 3 to 5 days.
- Certified contract electronic manufacturing with AOI, ICT, and functional test support.
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ISO9001 ISO13485
ISO14001
IATF
16949
IPC-A-610H International
Certification
Fully Automated
AOI Inspection
Custom PCB Contract
Assembly Services
WellPCB delivers full-spectrum PCB assembly contract manufacturing for companies requiring fast, traceable, and cost-effective builds.
We support contract manufacturing for electronic printed circuit board systems using both turnkey and consigned sourcing models, with support for up to 64-layer boards, 0.5-4.5 mm finished thickness, and 60,000 component placements per hour.
Our contract model includes DFM review, circuit board contract manufacturing services, SMT and through-hole assembly, conformal coating, and final product assembly in certified manufacturing facilities. Our team handles component sourcing, PCB fabrication, electronic assembly, and final product assembly under IPC-A-610H Class 2/3, RoHS, and ISO 9001 standards.
We assemble BGAs down to 0.2 mm pad pitch, QFPs down to 0.15 mm/0.25 mm, and maintain ±30 μm placement accuracy across all high-speed SMT lines. Our facilities support surface mount, through-hole, and box build solutions with comprehensive quality control including AOI, ICT, and functional test capabilities.
Each build follows Class 2 or Class 3 quality control under IPC-A-610H and J-STD-001, with options for AOI, X-ray inspection, ICT, functional testing, and firmware programming.
Our process supports both prototype and production runs, with delivery in 3 to 25 days, depending on build scope and sourcing path.
Our PCB Contract Manufacturing
Capabilities
As a full-service PCB assembly contract manufacturer, we support high-speed SMT, manual and automated through-hole, and mixed-technology builds for single, double-sided, and multilayer printed circuit boards.
Each assembly line is calibrated for high accuracy, fast throughput, and traceable electronic manufacturing service workflows across prototype and production builds.
Our SMT lines place up to 60,000 components per hour with ±30 μm accuracy, supporting 01005 packages and fine-pitch ICs.
We offer dual-side reflow, wave soldering, and selective soldering for mixed-technology PCBs. All SMT and through-hole builds meet IPC-A-610 Class 2/3 criteria.
According to EMS industry benchmarks, SMT systems operating at ±30 μm placement accuracy place WellPCB among the top tier of Class 3-capable contract manufacturers.
| Specification | Details |
|---|---|
| Assembly Method | Single/Double-Side SMT, Through Hole Assembly, Single/Double-Sides Mixture Assembly |
| Equipment Used | 8 YAMAHA + 5 Siemens SMT lines across two facilities. |
| Component Types Supported | 01005, 0201, DFN, QFN, BGA, LGA, CSP, PoP, flip-chip. |
| PCB Size Range | 50 mm × 50 mm to 610 mm × 508 mm. |
| PCB Thickness | 0.5 mm～4.5 mm |
| Min. Diameter / Space of BGA | 0.2 mm / 0.35 mm |
| Accuracy | ±30 μm @ 3σ (CPK ≥1). |
We assemble fine-pitch QFPs down to 0.15 mm/0.25 mm and BGAs with pad sizes of 0.2 mm.
All BGA solder joints are verified using automated X-ray inspection. Our capabilities extend to CSP, LGA, and flip-chip components for advanced printed circuit board assemblies.
We handle full supply chain management through authorized channels like Mouser, Digi-Key, Arrow, and Avnet.
For each BOM, we provide alternate matching, lifecycle status, and batch traceability to avoid obsolescence or sourcing risk. Component kits are prepared and labeled for each job lot.
We offer in-circuit test (ICT), functional circuit test (FCT), flying probe, and custom jigs to validate assembled boards.
Our PCBA stations support in-flow firmware upload, bootloader flashing, and serial provisioning for microcontrollers, FPGAs, and embedded SoCs.
Our electromechanical assembly services integrate PCBAs into enclosures with wire harnesses, fasteners, EMI shielding, and overlays.
Options include automated labeling, serialization, final test, and drop shipment packaging. Full mechanical assembly is available for rack-mounted or handheld systems.
We apply acrylic, urethane, and silicone conformal coatings to protect boards from humidity, salt spray, and dust.
We also support potting and underfill for vibration-sensitive electronic components used in automotive and aerospace environments.
We support builds ranging from single-unit PCB prototypes to 10,000+ piece batches.
Lead times range from 24 to 72 hours for standard prototype runs to 7 to 25 days for complex printed circuit board assembly services. NPI and production workflows are both supported in-house.
For early-stage testing, we also support CNC-based PCB milling to produce prototypes without wet processes or panelization delays.
All production follows ISO 9001, RoHS, IPC-A-610, and J-STD-001 standards.
Traceable batch records, inspection logs, and serialized tracking support medical, automotive, and aerospace quality systems. Conflict mineral reporting and ITAR compliance available by request.
Why Choose WellPCB as Your PCB Assembly
Contract Manufacturer?
WellPCB is a vertically integrated PCB assembly contract manufacturer operating dual production sites with full in-house control over PCB fabrication, sourcing, and assembly. We meet Class 3, RoHS, and ISO standards while offering technical depth in electronic contract manufacturing services ranging from SMT to system-level box builds.
One-Stop Contract Manufacturing Partner
We handle contract manufacturing of PCB builds from Gerber validation through to labeled, tested final products.
Our synchronized process includes DFM review, turnkey or consigned component handling, stencil prep, surface mount placement, reflow, AOI, and packaging, all tracked under a single MES system.
In-House Manufacturing Facilities
Unlike many other PCB contract manufacturers, our dual-site model allows for parallel workflows, balancing quick-turn prototype runs with high-volume production while maintaining consistent quality control standards.
Advanced Supply Chain Support
We procure parts from Digi-Key, Arrow, Avnet, and Future Electronics, applying internal risk algorithms for lifecycle status, lead time, and sourcing stability.
All component kits are batch-coded and traceable, with real-time dashboard updates for BOM availability and supply chain fulfillment.
Certified for High-Reliability Builds
RoHS compliance and conflict mineral reporting are standard. Medical and defense projects follow locked-revision control and component validation protocols.
Integrated Engineering and DFM Review
We run DRC, spacing, annular ring, thermal relief, and solder mask clearance checks on every project before assembly.
Our engineers optimize pad layouts for fine-pitch QFNs, reduce stencil bleed risk, and consult on copper balancing for consistent reflow across high layer-count boards.
Quick Turnaround with Precision Quality
We offer 24 to 72-hour prototype PCB assembly and 5 to 25-day production cycles, depending on sourcing and stencil complexity.
SMT accuracy is maintained at ±30 μm (3σ, CPK ≥1), and boards undergo 100% inspection or custom FCT as required for your electronic product category.
Our End-to-End Contract Manufacturing Process
We follow a structured, traceable, and scalable workflow for contract manufacturing of PCB assemblies, optimized for rapid prototyping, NPI, and full-scale production. Our team manages every step of the electronics contract manufacturing cycle, from file validation to final shipment, under one unified system.
1. Design & DFM Review
2. Component Sourcing &
Kitting
3. Assembly & Optical
Inspection
4. Functional Test & Programming
5. Box Build & Final
Integration
6. Labeling & Shipment
Serialized barcode labels are applied to all PCBAs, with QR or 2D code options available.
Shipping includes anti-static packaging, moisture barrier bags, and documentation packs for traceability, quality control, and customs.
PCB Types and Structures We Support
We support a wide range of printed circuit board configurations for both standard and high-reliability applications. Our capabilities span low-layer PCB fabrication, complex stackups with blind/buried vias, and thermal-management builds using metal-core PCBs. These options provide layout flexibility across sectors like automotive, industrial, and medical electronics.
| PCB Type | Structure / Feature Set |
|---|---|
| Single-Layer PCB | One copper layer on one side of the substrate, used for simple, low-density circuits. |
| Double-Layer PCB | Copper on both sides with plated through-holes for signal routing between layers. |
| Multilayer PCB | 4 to 64 layers with internal copper planes and blind/buried vias for dense, high-speed designs. |
| Rigid PCB | FR4 or High-Tg base, 0.1 to 12 mm thick, ideal for structural and dimensional stability. |
| Flex PCB | Polyimide-based, 1 to 10 layers, capable of dynamic bending and reduced mechanical strain. |
| Rigid-Flex PCB | Combined rigid and flex zones for compact enclosures, 0.3 to 5.0 mm finished thickness. |
| Metal-Core PCB | Copper, Aluminum, Copper-Aluminum, Stainless Steel, or Iron substrate for superior thermal performance, thermal conductivity up to 15 W/m·K. |
| HDI PCB | Laser microvias, stacked vias, and fine lines down to 1.8 mil for high-density applications. |
| Heavy Copper PCB | Up to 28 oz copper, supports high current loads in power delivery systems. |
| RF / Microwave PCB | PTFE or Rogers base material with impedance control and low Df for signal integrity. |
Industries We Serve with Contract PCB Assembly
As a proven PCB contract manufacturer, WellPCB supports contract manufacturing PCB builds across a range of demanding industries. We meet stringent environmental, thermal, and electrical standards, supplying printed circuit board assemblies that power both embedded systems and full electromechanical platforms.
Medical Devices
Automotive & EV Electronics
Our circuit board contract manufacturing capabilities support high-current BMS, inverters, and ECUs using HDI, heavy copper, and hybrid stackups with 0.08 mm microvias and 40:1 via aspect ratios.
In 2022, over 10.5 million electric vehicles were sold globally, a 55% increase year-over-year, driving exponential demand for reliable PCBA and power control systems.
Industrial Equipment
We supply robust PCBs and box builds for PLCs, motor drives, and machine controllers. All assemblies meet IPC-A-610 Class 2 or 3, with optional FCT, thermal shock, and solderability testing.
Telecom & Networking
Defense & Aerospace
How to Order from WellPCB
in 5 Easy Steps
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?
WellPCB stands out among USA PCB 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 PCB manufacturers in USA.
WellPCB specializes in multilayer PCBs for advanced electronic applications. You can order these boards with $100 off using our special offer, providing high complexity at competitive rates for 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
PCB Assembly Contract Manufacturer Case Studies
PCB Manufacturing
An electronics client needed a high-density 8-layer PCB with tight design constraints. We delivered high-performance, reliable boards meeting strict electrical and structural requirements.
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.
PCB Assembly
A PCB design firm in Italy required short-run production of a complex board with both SMT and THT components. We managed the full assembly process, including component sourcing, PCB manufacturing and assembly, inspection, and shipping.
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.
PCB Assembly
This PCBA solution integrates a custom PCB with high-precision SMT assembly, tailored specifically for smart fingerprint lock systems. Designed for household appliances, it combines compact size, low power consumption, and reliable signal processing to support biometric recognition and secure user access.
Technical Specifications:
- Product Type: PCBA (PCB + SMT Patch)
- Application Product: Smart Fingerprint Lock
- Industry/Application: Home Appliances / Smart Home
- Assembly Process: Surface Mount Technology (SMT)+THT
- Function: Biometric signal processing, control logic
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 Assembly Contract Manufacturer FAQs
Do you provide turnkey and consigned PCB contract manufacturing?
Yes, we offer full turnkey PCB assembly services with component sourcing, or clients can supply parts for consigned builds. Both models follow the same Class 2/3 assembly process and include full traceability.
What quality standards do your assemblies comply with?
Our printed circuit board assembly services follow IPC-A-610 Class 2 or 3, J-STD-001, ISO 9001, and RoHS compliance per European Union Directive 2002/95/EC. We also support conflict mineral reporting and ITAR-compliant workflows for qualified projects.
Do you support functional testing and firmware programming?
Yes, our test department supports ICT, FCT, in-flow firmware programming, and burn-in test. These are included in all high-volume contract manufacturing PCB builds or can be added to low-volume runs.
Can you build and assemble rigid-flex or HDI circuit boards?
We support rigid, flex, rigid-flex, and HDI PCB fabrication with microvias down to 1.8 mil, buried vias, and copper weights from 0.33 to 28 oz. All designs are validated with impedance modeling and design for manufacturing checks.
Get $100 Off Your First PCB Assembly Order!
WellPCB is your trusted PCB assembly contract manufacturer for fast, compliant, and cost-effective contract manufacturing of PCB assemblies. Our dual-site infrastructure, integrated sourcing, and Class 3 inspection standards make us the go-to electronics contract manufacturing partner for high-reliability builds.
Upload your files today and receive a custom quote within 12 hours, plus $100 off your first order.
