Heavy Copper PCB
Geyuan Electronics possesses advanced technology, extensive engineering experience, and expertise to help you design and manufacture thick copper PCB correctly from the very beginning. With our innovative capabilities, we can manufacture PCB with up to 6 ounces of copper on the outer layers and up to 4 ounces on the inner layers. If you have any questions about the copper content required for your project, please contact us and we will respond as soon as possible.
A Full-Service Thick Copper PCB Manufacturer
Geyuan Electronics is a full-service thick copper PCB manufacturer, covering all stages from prototyping to mass production and assembly. We have over ten years of experience producing high-quality thick copper PCB. Furthermore, we are fully compliant with ISO, IPC, and RoHS standards. Our standard boards meet IPC 2 standards, and we conduct rigorous internal quality inspections to ensure the final product meets the highest quality standards. This commitment makes us a trusted thick copper PCB manufacturing service provider in China. We have an experienced team of experts and state-of-the-art infrastructure to ensure high-quality products with rapid turnaround times.
Heavy Copper Printed Circuit Board Manufacturing Services
Heavy copper PCBs have a finished copper thickness exceeding 4 ounces (140 microns), while standard PCBs typically have a copper thickness of 1 ounce (35 microns) or 2 ounces (0 microns). The thicker copper layer allows the PCB to handle greater power, achieve better heat dissipation, and implement complex switching functions in a smaller space. Geyuan Electronics leads other PCB service providers in offering a comprehensive range of heavy copper PCBs. These boards meet industry standards and customer specifications and are available in various sizes and models. Our products undergo rigorous quality inspection processes to ensure that delivered PCBs are free of defects.
Cost- and Time-Saving Heavy Copper PCB Services
We manufacture heavy copper PCBs to fit your budget. You can order a small sample first to evaluate your design before placing a large order. This will save you time and resources. We offer a free online heavy copper PCB quote based on your requirements; this allows you to understand the expected costs and plan accordingly. Our professional team also provides technical support at every stage of production. Furthermore, our Geyuan Electronics support team will handle your inquiries as quickly as possible. We boast a 99% customer satisfaction rate. If you have any doubts, try ordering a heavy copper PCB today.
Heavy Copper PCB Lead Times
We can turn your heavy copper PCB manufacturing order in as little as 72 hours.
72 Hours
1-5 Days
Fast Delivery of Heavy Copper PCB
We offer fast delivery of heavy copper PCBs, with copper weights up to 20 ounces. With an advanced rapid manufacturing system, we can quickly complete the production process and deliver high-quality boards in just 24-48 hours. Advance production planning and efficient processes ensure on-time delivery of your prototypes and urgent products, with consistent quality. And no matter your budget, we can provide a suitable solution. We offer discounts for large-volume heavy copper PCB orders. We are always available to answer any questions or concerns you may have via phone, email, and online chat. We are committed to producing high-quality heavy copper PCBs for you and strive to ensure your satisfaction with our service.
Advanced Heavy Copper PCB Production Capabilities
Geyuan Electronics is a reliable heavy copper PCB supplier. With our experience and resources we can produce PCB featuring inner layer copper thickness ranging from 0.5oz to 12oz and outer layer copper thickness from 3oz to 20oz.
| Feature | Capability |
| Material | FR4, aluminum |
| Min. Trace Width/Space | For outer (finish copper): |
| 4oz Cu 10mil/13mil,5oz Cu 12mil/15mil | |
| 6oz Cu 15mil/15mil,12oz Cu 20mil/32mil | |
| ……………………………………………………………………. | |
| For inner (finish copper): | |
| 4oz Cu 8mil/8mil,5oz Cu 10mil/10mil | |
| Max Layers | 10L (heavy copper). |
| Min. Hole Size | 8mil |
| pcb thickness/hole size ratio | Maximum:12:1 |
| Max PCB Size | 1200*500mm |
| Max Outer Layer Copper Weight (Finished) | 20oz |
| Max Inner Layer Copper Weight | 12oz |
| Board Thickness | 0.2-8mm |
| Surface Finishing | OSP, HASL lead free, Hard Gold (Electrolytic Gold), Immersion gold, Immersion Tin, Immersion Silver, ENEPIG |
| Solder Mask | Green, Red, Yellow, Blue, White, Black, Purple, Matte Black, Matte green |
| Silkscreen | White, Black |
| Via Process | Tenting Vias, Plugged Vias, Vias not covered |
| Test | Fly Probe Testing (Free) and A.O.I. testing |
| Build time | 5-10 days |
| Lead time | 2-3 days |
Engineering Team and Capabilities
With over a decade of experience manufacturing and assembling high-performance standard and thick copper PCBs, Geyuan Electronics helps customers achieve their production efficiency and profitability goals. We consistently adhere to standard operating procedures, with experienced engineers conducting Design for Manufacturability (DFM) reviews on every circuit file and addressing all questions and concerns before production. This helps ensure the final electronic circuit board meets your performance expectations. We have a strong team, including an in-house quality control department, guaranteeing the quality of our printed circuit boards. Our thick copper PCB manufacturing service operates 24/7 to meet stringent delivery deadlines. Our customer support team is also quick to respond to your needs.
Types of Heavy Copper PCBs We Manufacture
Our manufacturing capabilities cover the full spectrum of heavy copper PCB designs:
Double-Sided Heavy Copper PCBs
Multilayer Heavy Copper PCBs
Extreme Copper PCBs
Flexible Heavy Copper PCBs
Hybrid Heavy Copper PCBs
HDI Heavy Copper PCBs
Heavy Copper PCB Manufacturing Plant
We have a modern 165,000 square foot factory in Shenzhen and Dongguan, equipped with state-of-the-art equipment for manufacturing and assembling printed circuit boards. Whether you need standard PCBs or heavy copper PCBs, Geyuan Electronics leads the industry in quality and performance. Our rapid heavy copper PCB manufacturing services help customers accelerate product development cycles and seamlessly transition to high-volume manufacturing. With efficient manufacturing processes, we can provide short-lead-time delivery services, ensuring your projects proceed on schedule. Are you interested in our heavy copper PCB manufacturing services? Do you need rapid delivery of prototypes or high-volume heavy copper PCB manufacturing services? Request a free quote online today.
Design for Manufacturability (DFM)
Our Design for Manufacturability (DFM) process ensures your heavy copper PCB design is optimized for efficient production, reducing costs and ensuring high yields. We also offer one-on-one engineering support, providing expert engineering assistance throughout the design and manufacturing process. Our team works closely with you to ensure your heavy copper PCB design meets performance, reliability, and manufacturability standards. With over 15 years of experience in PCB manufacturing and assembly, Geyuan Electronics employs experienced engineers to review every circuit file and resolve any issues before production to ensure the finished board meets your performance expectations. Our quality control department also rigorously monitors the quality of the printed circuit boards.
Advanced Manufacturing and Testing Processes
We employ a time-consuming electroplating process lasting up to 70 minutes to achieve a uniform and consistent copper layer thickness. After copper deposition, backlight testing is performed to ensure adhesion of the copper in the vias. After etching, cross-sectional analysis is conducted to ensure that the thickness of the copper in the vias and the surface copper is consistent. AOI optical scanning ensures circuit pass-through (preventing open circuits, short circuits, broken fine wires, etc.). High-speed spiral flying probe testing ensures high PCB yield. LED parallel exposure machines are used for solder mask exposure, achieving an exposure uniformity of over 90%. High-precision laser text printing ensures the clarity and accuracy of text on the PCB.
Looking for a Heavy Copper PCB Quote?
We use a well-organized process and the right software to provide you with a quote within 4 hours. After you upload your information, including any fabrication drawings or schematics, our engineering staff will analyze the data and provide us with a comprehensive document so we can take a closer look at your heavy copper PCB project.
The Difference Between Thick Copper PCBs and Standard PCBs
The thickness of the copper deposition layer on the circuit board is a significant difference between standard PCBs and thick copper PCBs. A standard PCB has a copper layer weighing 1 ounce or 35 micrometers, while a thick copper PCB has a copper layer weighing 4 ounces or 140 micrometers. Standard PCBs cannot carry high currents; however, thick copper PCBs can carry considerably higher currents. Furthermore, standard PCBs cannot withstand mechanical stress to enhance thermal conductivity. On the other hand, thick copper PCBs are highly regarded for their enhanced thermal conductivity and ability to withstand mechanical stress.
Heavy-Duty PCB Manufacturing Methods
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Embedded Heavy Copper Method
Blue Bar Method
High Current Handling Capacity
Our thick copper PCBs are designed for high-power applications. With copper layer thicknesses ranging from 4 oz to 10 oz, we offer PCBs with low resistance and high current handling capacity. Thick copper technology enables complex switching within limited space and can be used with high-current circuits. Geyuan Electronics has reliable processes capable of producing copper layers up to 560µm thick (also suitable for multilayer structures). You can trust our years of experience in thick copper PCBs. We are committed to providing the highest quality thick copper PCB manufacturing services, including prototype and high-volume thick copper PCB manufacturing, at competitive prices.
One-Stop Supplier of Heavy Copper PCB Manufacturing and Assembly
Geyuan Electronics is a one-stop supplier of heavy copper PCB manufacturing and assembly, providing engineers with a streamlined path from prototyping to production. Our engineers have extensive experience in heavy copper PCB layout, including copper core PCBs, flexible copper PCB structures, and assembly. We can guide customers in selecting the optimal copper foil weight based on load requirements, thermal margins, and mechanical constraints. Our rapid prototyping capabilities enable quick validation of thick copper PCB designs and thermal cycling testing, while scaling to production volumes without sacrificing quality. In addition to bare board manufacturing, we also offer turnkey heavy copper PCB assembly services. With advanced equipment and streamlined workflows, we deliver highly competitive lead times for thick copper PCB manufacturing.
Heavy Copper PCB Manufacturing and Assembly
Bring your high-power designs to life with Elimold, a powerful manufacturing/assembly partner that supports your heavy copper PCB designs and high-power applications. We focus on fast delivery of rugged, high-performance heavy copper PCBs. Whether your design requires 4-ounce or 10-ounce copper layers, our advanced network of manufacturing partners meets your most demanding electrical and thermal requirements. Engineers choose Elimold because of our deep technical expertise, rapid lead times, and exceptional reliability in delivering complex, high-current boards. Our large copper solutions are ideal for harsh environments, and from rapid prototyping to full-scale production, our team ensures your heavy copper boards perform exceptionally well.
Browse Different PCB Solutions for Every Need
Looking for the right PCB solution? Explore various types of PCBs to find the perfect match for your project.
Aluminum PCB
Rigid PCB
Copper‑Core PCB
High-TG PCB
High Frequency PCB
High Speed PCB
HDI PCB
Rogers PCB
Flexible PCB
Rigid-Flex PCB
Ceramic PCB
Comprehensive Pre-sales and After-sales Support
Geyuan Electronics offers professional pre-sales support. Our customer service and technical teams are ready to answer any questions or provide consultation. For after-sales service, we are committed to resolving any quality issues, providing rework services or appropriate compensation. Ensuring a positive customer experience is a core value of our company, and we strive to provide excellent service at every stage of your cooperation with us. If you encounter any challenging issues in this area and need assistance, Geyuan Electronics can help you, answer your questions, and manage the entire process for you. Our clear and transparent workflow will save you time and effort. After placing your order, you simply wait for delivery.
Quality Control
We take full responsibility for every step of your PCB manufacturing process. As a rigorously vetted supplier, ensuring you receive your ordered products is always our top priority. Furthermore, before production, we compare materials against approved samples to ensure the final product meets the expectations of both our company and our customers. We have a dedicated quality control team that creates test samples from raw materials within specified timeframes to ensure the quality of manufactured materials and products meets specifications. When placing large orders, we must ensure the highest standards of raw material quality. Therefore, our quality inspection team re-inspects PCB materials and samples according to a quality checklist.
AOI (Automated Optical Inspection)
High-resolution camera systems (≤5 μm accuracy) scan each board for conductor misalignment, open circuits, and surface defects post-etch and post-solder mask.
E-Test (Electrical Testing)
Validates 100% net continuity and insulation integrity across inner and outer layers using either flying probe or dedicated fixtures, depending on lot size.
X-Ray Inspection
Non-destructive imaging is used to confirm via fill consistency, inner-layer alignment, and solder joint voiding, especially important for boards using via-in-pad or heavy copper-filled structures.
Impedance Control Testing
Boards with controlled impedance features are tested to maintain ±10% tolerance, with adjustments in dielectric thickness, copper width, and resin content based on field solver simulations and in-line test feedback.
Our Certifications
Furthermore, all our products adhere to the IPC & ROHS Standards. It is our continuous endeavor to produce premium quality PCB products.We are duly certified with the following accreditations:
- IATF 16949:2016
- ISO 9001:2015
- ISO14001:2015
- ISO13485:2016
- UL
Applications of Heavy Copper PCB
Thick copper sheets have high elongation and are not limited by operating temperature. They are commonly used in thermoforming equipment and highly corrosive environments. Below is a complete list of applications for heavy copper PCBs.
- Power amplifier modules
- DC to-DC power converters
- Planar transformers
- Heat dissipation products
- Automotive power distribution junction boxes
- High power distribution boards
- Weapons control systems
- Power supplies in radar systems
- Power distribution panels
- Battery charger and monitoring systems
- Solar Panel Manufactures
- HVAC systems
- Power line monitors
- Solar power converters
- Power converters for railway electrical systems
- Nuclear power applications
- Welding equipment
- High power rectifiers
- Torque controls
- Excitation systems for power regulators
- Central power system
- Power electronic devices
Industries We Serve
Heavy copper PCB applications span industries where high current, efficient thermal management, and mechanical durability are paramount:
Heavy Machinery
Aerospace Applications
Automotive Industries
Industrial Equipment
Power Electronics
Lighting
FAQ
Yes, Geyuan Electronics offers customized heavy copper PCB manufacturing services to meet your specific design needs, including different copper thicknesses, board sizes, layer counts, and other specifications. Our engineering team works closely with clients to ensure the final product meets their requirements.
At Geyuan Electronics, we maintain ISO-certified quality control throughout the entire production process, including thermal resistance testing, dimensional accuracy, and mechanical strength testing, to ensure your heavy copper PCB meets the highest reliability and performance standards.
Yes, our experienced PCB design team can assist you with PCB design and layout services for heavy copper PCBs, ensuring your PCB is optimized for manufacturing and meets your application requirements.
Geyuan Electronics strictly adheres to various quality standards, including ISO 9001, UL certification, and compliance with IPC PCB manufacturing standards. This ensures that all our PCB products, including heavy copper PCBs, are manufactured to the highest quality and reliability standards.
A heavy copper PCB is a printed circuit board with a thicker copper layer, typically ranging from 3 ounces to 20 ounces or more. The thicker copper layer offers several advantages, such as higher current carrying capacity, better heat dissipation, and greater mechanical strength.
Looking For A Heavy Copper PCB Manufacturing Partner?
Share project requirements and receive a customized quote from our team.If you have any questions about our thick copper PCB manufacturing capabilities, please contact the experts at Geyuan Electronics as soon as possible.