Flexible PCB Manufacturing
Professional FPC and Rigid-Flex PCB fabrication with polyimide substrate. FPC 1-8 layers, Rigid-Flex 2-14 layers, with precision down to 0.04mm line width. Upload files, get a quote, and receive your boards fast.
What is a Flexible PCB?
A Flexible PCB (FPC) is a printed circuit board built on a flexible polyimide substrate that can bend, fold, and twist without breaking. Unlike rigid FR-4 boards, flexible circuits conform to complex geometries, enabling thinner, lighter, and more reliable electronic assemblies.
Space & Weight Savings
Flexible PCBs eliminate bulky connectors and wires, reducing overall weight and allowing compact, innovative product designs that rigid boards cannot achieve.
Durability in Harsh Environments
Polyimide substrate withstands extreme temperatures, chemicals, and UV exposure — making flexible circuits ideal for demanding industrial, automotive, and aerospace applications.
Improved Signal Integrity
Shorter signal paths and reduced interconnects minimize noise and crosstalk, delivering cleaner signals for high-speed and sensitive electronics.
Applications
Flexible PCBs power innovation across industries.
Consumer Electronics
Wearables, foldable phones, cameras, and portable devices where space and flexibility are critical.
Medical Devices
Implantable sensors, diagnostic equipment, and wearable health monitors requiring biocompatible, flexible circuits.
Automotive Electronics
Dashboard displays, ADAS sensors, and lighting modules that must endure vibration and temperature cycling.
Aerospace
Satellite components, avionics, and communication systems demanding lightweight, high-reliability interconnects.
Capabilities
Our flexible PCB manufacturing covers a comprehensive range of specifications.
| Parameter | Value |
|---|---|
| FPC Layer Count | 1 – 8 Layers |
| Rigid-Flex Layer Count | 2 – 14 Layers |
| FPC Board Thickness | 0.05 – 1.0 mm |
| Rigid-Flex Board Thickness | 0.27 – 3.2 mm |
| Min Dielectric Thickness | 0.05 mm |
| Max Panel Size (FPC) | 250 × 550 mm (19.7" × 21.6") |
| Max Panel Size (Rigid) | 500 × 600 mm (19.7" × 23.6") |
| Base Copper Weight (FPC) | 1/3 – 2 oz |
| Base Copper Weight (Rigid-Flex) | 1/3 – 4 oz |
| Finished Copper (Outer) | 1 – 2 oz |
| Hole-wall Copper | 20 / 25 μm |
| Min Line Width/Space (FPC Outer) | 0.045 / 0.045 mm |
| Min Line Width/Space (FPC Inner) | 0.04 / 0.04 mm |
| Min Line Width/Space (Rigid-Flex) | 0.05 / 0.05 mm |
| Line Width Tolerance | ±20% (Typical), ±10% (Advanced) |
| Layer to Layer Registration | 5 mil |
| Controlled Impedance | ±8% |
| Min Mechanical Drill | ≥0.15 mm |
| Min Laser Drill | ≥0.075 mm |
| Max Aspect Ratio (PTH) | 12:1 |
| Max Aspect Ratio (Microvia) | 1:1 |
| Backdrill Depth Tolerance | ±3 mil |
| Coverlay Color | Yellow / Black / White / Transparent |
| Stiffener Options | PI / FR4 / Stainless Steel / 3M Tape |
| Laminate Suppliers | SYTECH, TAIFLEX, ThinFlex |
| Surface Finish | HASL-LF, ENIG, Immersion Tin, OSP, Immersion Silver, Gold Finger |
Why Choose Lianyuhong?
Trusted by engineers worldwide for flexible PCB manufacturing.
Flexible Material Choices
We offer a wide range of polyimide substrates, coverlay options, and stiffener materials to match your exact application requirements.
Precision You Can Trust
Advanced laser drilling and direct imaging ensure tight tolerances down to 0.045mm track/space for complex flex and rigid-flex designs.
Reliable Quality
Every board undergoes rigorous electrical testing and AOI inspection. ISO 9001 & ISO 13485 certified processes guarantee consistency.
Cost-Effective & Fast
Competitive pricing with quick-turn options — get prototype flexible PCBs in as fast as a few business days.
How to Order
Three simple steps to get your flexible PCBs.
Upload Files
Upload your Gerber files and design specifications. We accept all standard EDA formats.
Get Quote
Receive an instant, transparent quote with detailed cost breakdown — no hidden fees.
Receive Boards
Your flexible PCBs are fabricated, inspected, and shipped right to your door.
Ready to Start Your Project?
Send us your design files and let our team provide a competitive quote within 24 hours.