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Car mounted Double Side FPCB

Layers 2
Board Thickness 0.1MM
Material Glue-free electrolysis
Copper Thickness 1/3 OZ
Surface Treatment Immersion nickel gold
Minimum Line Width/Line Spacing 0.07/0.07MM
PI Reinforcement Thickness 0.2MM
Impedance /
Features Electromagnetic shielding film + device area sealing black glue process

 

Car-Mounted Double-Side FPCB (Flexible Printed Circuit Board) refers to a durable, high-reliability flexible circuit board designed for automotive applications, where compactness, flexibility, and withstandment to extreme conditions are critical. Built with ​double copper layers on a ​0.1–0.3mm thick polyimide (PI) substrate, these FPCBs enable complex signal routing and power distribution in tight spaces, making them ideal for modern vehicle interiors, sensors, and electrical systems.

Key Features for Automotive Applications:

  • Extreme Temperature Resistance: Operates reliably in ​**-40°C to 125°C** environments, critical for automotive electronics exposed to harsh conditions.
  • Mechanical Flexibility: Supports repeated bending and vibration resistance (up to ​10,000+ bends) for dynamic mounts in door panels, dashboards, or under-hood components.
  • Water/Dust Proofing: Built-in conformal coating and ​IP67/IP68 certification ensures resilience against moisture, oil, and automotive-grade contaminants.
  • High-Density Interconnects (HDI): Uses microvias (0.05mm/2mil) and for compact layouts in advanced driver-assistance systems (ADAS), infotainment screens, and battery management modules.
  • Signal Integrity: Controlled impedance (100Ω–10GHz) and EMI shielding options for seamless communication inCAN, LIN, and high-speed data transmission.

Applications in Automotive Systems:

  • Interior Electronics: Seat controls, climate system interfaces, and instrument cluster displays.
  • Sensors & Actuators: Tire pressure monitoring systems (TPMS), airbag deployment units, and steering wheel controls.
  • Lighting Systems: LED matrix headlights, interior ambient lighting, and brake light assemblies.
  • ADAS & Autonomous Driving: Camera modules, radar interfaces, and LiDAR signal processing.
  • Battery Management: Flexible connections for electric vehicle (EV) battery packs and thermal monitoring systems.

Advantages Over Rigid PCBs in Automotive Use Cases:

  • Space Optimization: Slim profiles (0.1mm thickness) save ​30–50% in vehicle design volume compared to rigid boards.
  • Cost Efficiency: Reduces assembly complexity and wire harness costs through simplified 3D conformal mounting.
  • Design Freedom: Enables curved, uneven, or wrap-around designs for aerodynamic or ergonomic automotive components.
  • Long-Term Reliability: Verified for ​10+ years of operation under IPC-6012 Class 3 standards and ISO 16949 automotive-grade quality requirements.

Manufacturing Compliance:

  • RoHS/REACH Compliance: Lead-free soldering and eco-friendly materials for global automotive markets.
  • Automotive Grade Testing: Passes ​AEC-Q101 reliability tests for thermal cycling, humidity, and mechanical shock.
  • Quick Prototyping: Supports ​10–20 days lead time for custom designs, accelerating product development cycles.

Target Audience:
Automotive OEMs, Tier 1/2 suppliers, EV startups, and engineers seeking ​flexible, durable PCB solutions for next-gen vehicles.

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