In the field of new energy power electronics (photovoltaics / energy storage / EV charging stations), PCBs are required to meet extremely high standards in precision, reliability, and integration density. The 10-layer, 1-step HDI board launched by Kingboard/Baineng Yunban is a high-performance solution specifically engineered to fulfill these demanding requirements.

Core Technical Specifications

Product Advantages

Extreme Precision, Enabling High-Density Integration With a minimum hole diameter of 0.1mm and a minimum BGA pitch of 0.2mm, this PCB supports denser electronic component placement, perfectly matching the stringent spatial and performance demands of core control modules in new energy equipment.

High-Reliability Materials, Built for Harsh Environments Utilizing Shengyi S1000-2M base material (Tg 170), it offers excellent thermal resistance and mechanical strength, ensuring long-term stable operation in the high-temperature, high-humidity, and high-vibration conditions typical of new energy applications.

Advanced Manufacturing Processes, Ensuring Signal Integrity The immersion gold + gold finger (30μ") process delivers superior corrosion resistance and conductivity, guaranteeing stable transmission of critical signals. Resin plugging combined with electroplated planarization significantly enhances surface flatness, providing a reliable foundation for high-density component assembly.

Baineng Yunban 10-Layer, 1-Step HDI Board Product Showcase

Application Cases

Case 1: High-Power DC Charging Station Control Board

Customer Requirement: A leading EV charging station manufacturer needed a next-generation control board for its 120kW DC fast charger, requiring integration of multi-channel power management, high-speed communication, and high-precision sampling circuits within a limited space, while maintaining stable operation in outdoor environments ranging from -40°C to 85°C.

Solution:: Baineng Yunban’s 10-layer, 1-step HDI board was adopted. Its high-density routing capability enabled integration of the core control unit and power drive unit, significantly reducing equipment size. The immersion gold process and high-Tg substrate ensured stable electrical performance under extreme temperatures, while resin plugging enhanced mechanical robustness to withstand outdoor vibrations.

Customer Value:: Equipment volume reduced by 30%, failure rate decreased by 40%, enabling the customer’s product to be the first in the industry to pass rigorous outdoor reliability certification and achieve a 15% increase in market share.

Case 2: BMS Mainboard for Commercial & Industrial Energy Storage Systems

Customer Requirement: An energy storage system integrator required a BMS mainboard capable of managing over 200 battery strings in its 1MWh commercial/industrial energy storage cabinet project, demanding exceptional signal integrity and EMI immunity to ensure precise battery state monitoring.

Solution: Baineng Yunban’s 10-layer, 1-step HDI board implemented a meticulous interlayer layout that physically isolated analog signal acquisition zones from digital control zones, drastically reducing electromagnetic interference. The fine 3.94mil trace width provided ample routing space for high-density battery sampling circuits.

Customer Value: Battery state monitoring accuracy improved to within ±0.5%, system response speed increased by 25%, enabling the customer’s energy storage system to achieve industry-leading performance in cycle life and charge/discharge efficiency.

Case 3: Main Control Board for Photovoltaic Grid-Tied Inverters

Customer Requirement: A PV inverter manufacturer sought a main control board for its new string inverter generation that supports higher MPPT (Maximum Power Point Tracking) efficiency while withstanding strong electromagnetic radiation and large diurnal temperature swings typical in solar farms.

Solution: The 10-layer structure and HDI technology provided efficient signal paths for the main control IC and peripheral circuits. The minimum 0.1mm hole diameter enabled ultra-compact component layout. The high thermal resistance of the S1000-2M substrate ensured stable inverter performance under full-load operation.

Customer Value: Inverter conversion efficiency reached 98.8%, with an MTBF (Mean Time Between Failures) exceeding 100,000 hours under extreme conditions, helping the customer secure multiple large-scale overseas solar farm projects.

Leveraging deep technical expertise in specialty PCBs, Kingboard/Baineng Yunban delivers end-to-end solutions—from design to manufacturing—for the new energy industry. This 10-layer, 1-step HDI board embodies our technological prowess and industry insight, empowering customers to gain a competitive edge in the rapidly evolving new energy market.