Heavy copper PCB layouts engineered to deliver unparalleled current capacity and thermal dissipation for European applications
In the heart of the European green energy transition, the Paris metropolitan area is rapidly advancing its digital and transport infrastructure. Heavy copper printed circuit boards (Thick Copper PCBs) with copper weights ranging from 3 oz/ft² to over 20 oz/ft² are critical components in these applications. Whether deployed in the EV charging hubs of the Île-de-France region, modern traction systems for high-speed rail lines, or industrial server platforms supporting Paris-Saclay's technology corridor, thermal management and reliable power distribution are essential.
As standard PCBs fail under high-current thermal loads, thick copper circuits step in. These boards combine heavy copper layers with specialized substrate materials to allow high current levels, protect against mechanical stresses, and integrate heat sinks directly onto the board surface. The results are reduced component counts, simplified systems, and longer lifetimes for mission-critical assemblies.
The Paris metropolitan area, known as Île-de-France, is home to a major concentration of high-tech industries, corporate headquarters, and academic research institutions. Under regional development projects like "Smart Region" and France 2030, local manufacturing is shifting toward energy independence and smart mobility. This shift creates direct demand for heavy-current power electronics, which rely on robust circuit board designs.
Historically, heavy industrial setups were isolated outside the city center. However, decentralized energy storage projects, urban microgrids, and high-frequency commuter networks require power conversion close to residential areas. Standard PCBs are insufficient for these demands. Thick Copper PCBs provide the thermal capacity and current pathways needed for applications such as traction substations, solar grid tie-ins, and high-current power distribution panels.
On a global scale, the PCB industry is moving toward high-performance materials and complex structures. While commodity boards are standardized, Thick Copper PCBs require precision engineering during plating, etching, and lamination. As Paris-based OEMs design equipment for industrial control systems, automotive traction, and defense systems, they need exporters who understand IPC Class 3 standards, RoHS/REACH compliance, and CE certifications.
Velmix Technology works alongside specialized raw material suppliers and fabrication centers to export heavy-copper solutions that meet European environmental and electrical standards. We support the regional ecosystem by offering customized copper configurations, controlled impedance structures, and high-Tg hybrid laminates suitable for demanding French projects.
Exploring how heavy copper PCBs are deployed in France's capital projects and how our technological roadmap aligns with industry demands
Supporting high-power charging networks around the peripheries of Paris. Thick Copper PCBs serve as the primary rectifying and power distribution backbone inside 150kW-350kW DC chargers, handling sustained currents and thermal cycling.
Providing power electronics for rail signaling, cab control interfaces, and trackside power systems. These modules require thermal durability to resist vibrations, humidity, and wide ambient temperature ranges.
Integrating solar installations and energy storage systems across urban districts. Heavy copper boards carry currents from PV arrays and battery banks through inverters to stabilize local power distribution.
The demand for power boards is evolving rapidly. We are moving beyond traditional 3 oz/4 oz multi-layer structures. Our forward technical roadmap focuses on three main developments:
A professional hardware partner specializing in high-performance memory, server thermal modules, and custom PCBA solutions
Velmix Technology Co., Ltd. is a manufacturer of high-performance DRAM memory and server cooling solutions based in Shenzhen, China. Since our establishment in 2017, we have developed, produced, and exported memory systems and thermal hardware for consumer electronics, industrial applications, gaming rigs, servers, and embedded networks globally.
From our 368m² facility, we combine modern manufacturing techniques with strict quality control to verify that every module meets international benchmarks. Our engineering team develops DDR5 and DDR4 memory layouts designed to handle the data demands of AI installations, edge computing, smart grids, and enterprise servers.
Velmix serves clients in more than 40 countries, providing OEM and ODM options for global brands, system integrators, and industrial buyers. Focusing on component reliability, fast lead times, and engineering assistance, we support long-term partnerships in Europe, North America, Southeast Asia, and the Middle East.
| Specification Metric / Detail | Manufacturing & Export Capabilities |
|---|---|
| Company Name | Velmix Technology Co., Ltd. |
| Established / Export History | Established in 2017 / 8 Years of Global Trade Experience |
| Facility Footprint | 368m² Production Area (Optimized Layout) |
| Annual Export Revenue | USD 18.6 Million |
| Quality Assurance Staff | 56 Dedicated Quality Professionals |
| Product Inspection Protocols | Signal Integrity Test, Burn-in Test, Compatibility Test, Functional Test & Random Sampling |
| Compliance & Material Control | 100% Full Inspection Before Shipment, RoHS, REACH, Lead-Free Manufacturing |
| R&D Strength | 84 Engineers / Independent Product Design, PCB Layout & Firmware Optimization |
| Customization Options (OEM/ODM) | Private Label, Custom Capacity, Heat Spreader, PCB Color & Packaging Configurations |
| Supply Chain Partners | Over 986 Global Materials and Logistical Partners |





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Addressing common design, manufacturing, and regulatory questions from French procurement and electrical engineering departments
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