Applications
Automotive Flexible Circuit Board Solutions
As vehicles electrify and get smarter, FPC is replacing conventional harnesses across smart cockpits and body control.

Key points
Flexible printed circuits bring light weight, high flex endurance, dense integration and resistance to temperature extremes and vibration, allowing them to replace conventional wiring harnesses across EV powertrain, smart cockpit and body control components. Backed by our IATF 16949 system and automotive process controls, we deliver stable volume production for column switches, electronic shifters, wiper systems and switch assemblies.
IATF 16949 system
Automotive process control with complete quality documentation.
Replaces wiring harnesses
Integrated routing cuts connectors and solder joints, raising overall reliability.
Thermal and vibration validation
Thermal cycling, vibration and conductive stability testing to automotive requirements.
Recommended products

Automotive Switch Interconnection
Automotive Column-Mounted Shifter FPC
Automotive shifter flexible circuit board with high-temperature-resistant PI coverlay, balancing flexural durability and tensile strength.
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FPC for Intelligent Cockpit
FPC for Module Touch Interaction Components
FPC for Module Touch Interaction Components is specifically designed for automotive central control displays, instrument clusters, interior ambient lighting, and gear shifters—core intelligent cockpit components—with automotive-grade design for high durability and stability, supporting lightweight construction, curved layout, and high-definition signal transmission.
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Smart Cockpit FPC
Seat Pressure Sensor FPC
The seat pressure sensor FPC is used in smart cockpit systems to monitor occupant posture and pressure distribution in real time. It features an automotive-grade flexible printed circuit structure validated through one million flex cycles, thermal cycling (high/low temperature), vibration, and salt spray testing—ensuring high reliability and full traceability.
View detailsRelated reading
How Automotive FPC Manufacturers Ensure Consistent Bending and Forming?
Before installation into vehicle housings, automotive flexible printed circuits (FPCs) often require pre-forming or conforming to curved surfaces. Variations in angle, springback, and positioning across batches can cause assembly interference and stress on circuit traces. This article outlines control methods covering forming datum, tooling, material springback, and in-process inspection.
Learn moreIndustry InsightsHow FPC Manufacturers for Electronic Shifters Implement Mistake-Proofing and Serviceability Design
Beyond meeting circuit and flex reliability requirements, FPCs for electronic shifters must accommodate manual and automated assembly, field service disassembly/reassembly, and multi-version management. This article explains mistake-proofing and serviceability design through connector orientation, positioning features, labeling, and test points.
Learn moreIndustry InsightsHow Automotive-Grade FPC Manufacturers Translate Special Characteristics to the Production Floor: Mapping APQP to PPAP Documentation
The challenge of automotive-grade FPC projects lies not in producing voluminous documentation, but in ensuring traceable alignment among drawing special characteristics, PFMEA, control plans, inspection records, and PPAP submission items. This article outlines—through the lens of customer audit—the linkage between automotive FPC quality documentation and shop-floor controls.
Learn moreProcess parameters and manufacturing capability
The figures below reflect our production-proven capability window. For special structures, please talk to our engineering team for a detailed assessment.
Learn moreQuality built to pass the toughest qualification
Hongyi Precision is certified to ISO 9001, ISO 14001 and IATF 16949, with a quality system spanning design, manufacturing and delivery.
Learn moreSend us your drawings
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.