Heavy Copper
PCB for High-Current Power Applications – Advanced 6-Layer Design with Immersion Gold Finish This Heavy Copper PCB is engineered for exceptional electrical performance in demanding power electronics environments. Featuring a robust 6-layer structure, this board utilizes SY S1141 substrate material known for its thermal stability and mechanical strength. With copper thicknesses of 2 oz and 6 oz (70 µm), it delivers superior current-carrying capacity compared to standard PCBs—ideal for high-power converters, inverters, motor drives, and battery management systems where reliability under heavy load is critical. Key Features: - Premium 6-layer configuration ensures signal integrity and efficient heat dissipation - Enhanced conductivity from thick copper layers (2 oz–6 oz) minimizes voltage drop and resistive losses - Immersion gold surface finish (1–3 µm) improves solderability, corrosion resistance, and long-term durability - Green soldermask provides insulation and environmental protection while enhancing visual clarity - White silk screen printing enhances component identification and board readability - Board thickness of 2.8 mm offers structural rigidity suitable for industrial-grade applications Detailed Description: The Heavy Copper PCB represents a specialized advancement in printed circuit board technology tailored for high-current scenarios. Unlike conventional boards that use thin copper traces (typically 1 oz or less), this design incorporates reinforced conductive pathways that reduce thermal stress and prevent overheating during continuous operation. The manufacturing process includes precise lamination of thick copper foil, advanced etching techniques, multi-layer stacking, and controlled plating—all essential steps in producing a reliable high-performance board. Each stage—from base material preparation to final inspection—is optimized for consistency and quality control. The immersion gold finish not only protects exposed copper surfaces but also supports fine-pitch component assembly and reworkability without degradation. This makes the PCB particularly well-suited for power electronics requiring frequent maintenance or high-frequency switching operations. Use Cases & Industry Applications: These PCBs are widely adopted across industries such as renewable energy, electric vehicle charging infrastructure, industrial automation, and medical equipment. In power converters, they enable stable energy transfer even at elevated currents, reducing the risk of premature failure. For motor controllers and DC-DC converters, the enhanced thermal conductivity allows better heat distribution across the board, extending operational life. Additionally, their ability to handle transient loads makes them ideal for battery management systems in EVs and energy storage units where consistent performance under variable conditions is vital. Customer Feedback Highlights: Users consistently praise the board’s reliability in high-stress environments, noting reduced thermal issues and improved signal fidelity over time. Engineers appreciate the clean layout options enabled by the 6-layer design and the ease of integrating complex power circuits without compromising efficiency. Many have reported fewer field failures and lower maintenance costs when deploying these boards in commercial-grade inverters and motor drivers. Frequently Asked Questions: What makes Heavy Copper PCBs different from standard ones? They feature significantly thicker copper layers (2 oz to 6 oz vs. 1 oz), enabling higher current handling, better thermal performance, and greater mechanical resilience. Is immersion gold suitable for all environments? Yes—it provides excellent oxidation resistance and compatibility with lead-free soldering processes, making it ideal for harsh or humid conditions. How does the 6-layer stack benefit power applications? It allows for dedicated power planes, ground planes, and signal routing, minimizing electromagnetic interference and improving overall circuit stability. Can this PCB be used in automotive systems? Absolutely—it meets the requirements for ruggedized electronics in EVs, hybrid vehicles, and onboard chargers due to its thermal and electrical robustness.
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