Electronic Shift-by-Wire FPC
Hongyi Precision’s R&D team, through extensive assembly-motion validation, determined that connector pads, soldering pins, and external mounting areas require stiffeners—stainless steel or rigid PI—with thickness ≥0.1 mm to enhance plug-in and assembly strength; stiffeners are strictly prohibited in dynamic flex zones to avoid restricting flexibility and causing stress-concentration fractures.
Key features
Integrated conductive ring design
Combines sensing traces and conductive ring to simplify shift-by-wire structure
Specialized flex-process control
Dynamic and static zones assigned distinct bend radii to prevent copper fatigue fracture
High-precision fine-pitch circuitry
Ensures linear angle-signal output and accurate gear-position recognition
Automotive-grade wide-temperature tolerance
Withstands in-vehicle alternating high/low-temperature operating environments
Irregular multi-branch integrated construction
Matches tight, complex internal packaging space of shift-by-wire assemblies
100% powered electrical testing
Ensures batch consistency and reduces vehicle-installation failure risk
Specifications
- Layers
- 1–2 layers
- Minimum trace width/space
- 60/60 μm
- Base material
- PI 12.5 μm / 25 μm
- Copper thickness
- 12 μm, 18 μm
- Surface finish
- ENIG gold plating, OSP
- Dynamic bend radius
- ≥10–20× board thickness
- Static bend radius
- ≥6–10× board thickness
- Operating temperature
- -40℃ ~ 105℃
- Electrical testing
- 100% full inspection
Typical applications
- Automotive shift-by-wire gear-position sensor
- In-vehicle rotary angle position detection module
- Automotive control mechanism signal acquisition component
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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