Bipedal Robot Joint Sensor FPC

This FPC is designed for bipedal robot joint sensor assemblies. To address component failure due to salt mist corrosion, Hongyi Precision developed an optimized zoned surface finish solution: ENIG applied to critical pads for oxidation resistance, durability under repeated mating cycles, and stable solder joints; tin plating used on non-critical trace areas to reduce overall production cost. This zoned approach balances long-term reliability and cost, successfully passing robotic environmental reliability testing.

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Key features

Zoned Surface Finish Solution

Critical Pads: ENIG; General Areas: Tin Plating (Optional)

ENIG Process Advantages

Oxidation resistance, salt mist resistance, mating cycle endurance, stable solder joints

Supports continuous robot operation

Resists moisture and salt mist, delaying trace corrosion

Cost-Optimized Design

Flexible material selection for non-critical zones enables effective cost control

Compatible with Robot Joint Assembly

Facilitates SMT component placement and connector mating

Specifications

Layers: 1–2 Layers
Pad Finish: ENIG (Optional)
General Area Finish: Tin Plating (Optional)
Base Material: PI: 12.5μm / 25μm
Copper Thickness: 12μm, 18μm
Reliability Standard: Meets Industrial-Grade Salt Mist Testing
Operating Temperature: -40℃ to 105℃
Electrical Testing: 100% Full Inspection

Typical applications

Bipedal Robot Joint Angle Sensor
Robotic Limb Motion Signal Acquisition Flex Cable
Internal Sensor Interconnect FPC for Smart Robots
FPC Assembly for Compact Smart Actuators

Talk to an engineer

Share your Gerber files or specification and our engineering team will assess manufacturability, advise on process and stack-up, then move your project through sampling and volume production to automotive standards.

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