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This 6-layer PCB dedicated to industrial network adapters features a board thickness of 1.6 mm with electroless nickel immersion gold (ENIG) surface finish. Equipped with high-density routing and beveled gold fingers, it meets the stringent reliability and transmission performance standards of industrial Ethernet equipment. It enables high-speed and stable industrial network data transmission, delivering dependable network connectivity support for industrial controllers, industrial servers, industrial switches and other devices.
Advanced 6-layer Structure
The 6-layer stack-up design enables layered isolation of complex signals and precise impedance control, satisfying anti-interference requirements for high-speed industrial network signal transmission.
Precision Circuit Fabrication
The minimum trace width/spacing reaches 4mil/3.5mil, with a minimum hole size of 0.3 mm, supporting high-density, multi-channel routing for industrial communication signals.
High Current-Carrying Copper Foil
Copper weight of outer layers is 35 μm and hole copper thickness is 20 μm, delivering stable electrical conductivity to ensure low power loss and low heat generation under high-current transmission.
ENIG Finish + Beveled Gold Fingers
Adopting electroless nickel immersion gold surface treatment, the gold fingers are processed with beveling technology for superior plug-and-play wear resistance and oxidation resistance, suitable for frequent long-term plugging/unplugging and harsh industrial operating environments.
Green Solder Mask Process
Uniform coverage of green solder mask ink effectively protects circuits and improves surface corrosion resistance, meeting dustproof and moisture-proof demands of industrial scenarios.
Industrial Automation Equipment
Built-in network adapters for industrial personal computers (IPCs) and industrial servers, providing stable network connections for production line control systems.
Industrial Network Equipment
Industrial switches, industrial routers and fieldbus communication modules that realize data exchange and networking between on-site industrial devices.
Intelligent Manufacturing Systems
Smart production lines and Industrial Internet of Things (IIoT) data acquisition terminals, supporting high-speed transmission and remote monitoring of production data.
Industrial Control & Monitoring
Expansion network cards for industrial PLCs and equipment condition monitoring terminals, guaranteeing reliable and stable network communication in complex industrial environments.
Layer Count: 6 Layers
Board Thickness: 1.6 mm
Outer Copper Thickness: 35 μm
Hole Copper Thickness: 20 μm
Solder Mask Color: Green
Surface Finish: Electroless Nickel Immersion Gold (ENIG)
Minimum Hole Size: 0.3 mm
Minimum Trace Width/Spacing: 4mil/3.5mil
Special Processes: Gold Finger + Beveling
Design Phase
Complete the 6-layer stack-up design based on high-speed signal and impedance requirements of industrial network adapters, optimize differential routing layout, and comply with design specifications for beveled gold finger processes.
Material Selection
High Tg FR-4 base material is selected, paired with copper foil meeting 35 μm outer copper and 20 μm hole copper standards to accommodate long-term stable operation of industrial equipment.
Fabrication & Processing
CNC precision drilling, dry film exposure and circuit etching, multi-layer lamination, electrical testing, green solder mask printing, silkscreen legend printing, ENIG surface finishing, and gold finger bevel machining.
Comprehensive Testing
Continuity and impedance testing, hole wall reliability inspection, full AOI optical appearance inspection, and gold finger abrasion testing to eliminate defects such as open circuits, short circuits and poor plating.
Finished Product Delivery
Secondary visual inspection and final electrical performance testing, followed by moisture-proof and anti-static packaging to prevent gold finger oxidation and board surface damage during transportation.
Supported by a 6-layer stack-up design, ENIG finish with beveled gold fingers, and high current-carrying copper foil configuration, this 6-layer industrial network adapter PCB fully satisfies the high reliability and stability requirements of industrial network equipment. It addresses key industry pain points including signal interference, plug-in wear and oxidation failure in harsh industrial environments. Balancing high-density routing performance and long-term operational stability, it is widely deployed in industrial communication devices for industrial automation, intelligent manufacturing, IIoT and other sectors.
