Electronic Shift Sensor FPC
This electronic shift sensor FPC is used in automotive electronic shift mechanisms. Hongyi Precision collaborated with multiple customers on extensive testing and validation, establishing a standardized trace routing specification for bending zones: traces in bending zones use arc transitions or 45° diagonal layouts—right angles and acute angles are prohibited; minimum arc radius ≥ 0.2 mm to eliminate stress concentration points; dynamic bending zone trace width/space ≥ 100 μm/100 μm (higher than static zone specs) to enhance tensile resistance; trace width transitions use ≤15° tapered gradual transitions to prevent trace damage from abrupt width changes.
Key features
Arc-and-diagonal trace layout
No right or acute angles in bending zones; arc radius ≥ 0.2 mm to eliminate stress concentration points
Upgraded dynamic-zone specifications
Trace width/space ≥ 100 μm/100 μm to strengthen tensile resistance
Tapered trace width transition
≤15° gradual transition to prevent trace fracture from abrupt width change
Designed for long-term rotational flexing
Meets high-frequency reciprocating motion requirements of electronic shift mechanisms
High-temperature-resistant PI coverlay
Stable performance across temperature extremes; resistant to delamination and lifting
100% full electrical test
Consistent quality standard ensures batch-to-batch stability
Specifications
- Layer count
- 1–2 layers
- Dynamic bending zone trace width/space
- ≥100 μm/100 μm
- Trace transition standard
- Arc radius ≥ 0.2 mm or 45° diagonal; right angles prohibited
- Trace width transition angle
- ≤15° tapered gradual transition
- Base material
- PI 12.5 μm / 25 μm
- Copper thickness
- 12 μm, 18 μm
- Surface finish
- ENIG gold plating, OSP
- Operating temperature
- –40°C to 105°C
- Electrical testing
- 100% full test
Typical applications
- Automotive electronic shift angle sensor
- In-vehicle rotary position sensing assembly
- Electronic shift position signal acquisition module
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