Humanoid robotics

Dexterous hand sensing FPC

As humanoid robots move into volume production, the five-finger dexterous hand has become a core interaction component, and its internal high-density tactile sensing FPC is the part that decides how the hand feels and how long it lasts. Compared with consumer electronics flex, a dexterous hand FPC must pack dense sensing nodes into a minimal space and endure far more dynamic bend cycles than usual.

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Key features

High-density sensing nodes

Densely arranged tactile pads across the finger joints raise tactile resolution.

Very high dynamic flex life

Neutral-axis design with RA copper in the knuckle bend areas extends service life.

Routing in very tight spaces

Fine line widths route multiple signals through narrow finger channels.

Consistency control

Per-piece electrical testing and resistance screening keep the feel even across all fingers.

Specifications

Layers: 1 – 4 layers
Min. line width / spacing: 50 / 50 µm
Base material: PI 12.5 / 25 µm
Copper thickness: 9 / 12 µm (RA rolled copper)
Min. finished width: 1.0 mm
Surface finish: ENIG, ENEPIG
Electrical test: 100 % coverage
Bend design: Neutral axis + dynamic bend area

Typical applications

Five-finger tactile sensing
Fingertip pressure sensing
Flexible palm sensor arrays
Robotic grasp feedback

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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