Electronic gear shifter rolled copper FPC
This electronic gear shifter FPC is applied to position sensing and data acquisition in automotive electronic gear shift mechanisms. Hongyi Precision R&D screened dozens of suppliers and over one hundred material specifications to select an RA copper foil solution optimized for gear shifting conditions: RA rolled copper foil is mandated in dynamic flex zones—elongation ≥15%, copper purity ≥99.9%; electrolytic copper foil is prohibited. RA copper’s dense grain structure delivers superior flex fatigue resistance, enabling reliable operation over millions of gear lever actuations while reducing fatigue-induced cracking and open circuits; conventional copper foil may be selected for static fixed zones to optimize manufacturing cost.
Key features
Zoned material selection strategy
RA rolled copper for dynamic flex zones; conventional copper foil optional for static zones
High-performance rolled copper foil
Elongation ≥15%, purity ≥99.9%, dense grain structure
Exceptional fatigue resistance
Withstands millions of reciprocating bends; low risk of trace breakage
Application-specific material validation
Over one hundred materials tested to match in-vehicle gear shifting conditions
High–low temperature stable polyimide (PI) substrate
Suitable for complex in-vehicle thermal environments
100% electrical continuity testing
Strict control of final product conduction reliability
Specifications
- Layer count
- 1–2 layers
- Copper type in dynamic zone
- RA rolled copper
- RA copper specifications
- Elongation ≥15%, copper purity ≥99.9%
- Static zone
- Conventional electrolytic copper optional (model-dependent)
- Substrate
- PI 12.5μm / 25μm
- Surface finish
- ENIG gold plating, OSP
- Operating temperature
- -40℃ to 105℃
- Electrical testing
- 100% full inspection
Typical applications
- Automotive electronic gear shifter angle sensor
- High-frequency oscillating in-vehicle sensor flex circuit
- FPC assembly for long-term dynamic flex applications
- Signal acquisition ribbon for electronic gear position
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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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