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Flexible PCB Manufacturing
We laminate copper circuits, coverlays, and stiffeners into thin, bendable films that transmit signals and power while acting as mechanical connectors. Using substrates like PI, PET, LCP, and PTFE, we produce flexible PCBs that can bend, fold, or roll.
- Up to 18 layers
- Max panel size: 610×1200 mm
- Minimum BGA (um): 100 for prototype
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Our Flexible PCB Services Capabilities
Zintilon delivers advanced flex PCB solutions from prototyping to small-batch production. From material cutting to packaging, we balance flexibility and durability for reliable performance.
Flexible PCB Materials
Choose the best material based on temperature resistance, flex life, electrical performance, copper ductility, coverlay thickness, and local stiffening needs.Substrate Films (Insulation & Flex Backbone).
| Material | Thickness | Highlights | Limitations | One-Line Summary |
| Polyimide (PI) | 12.5–50 µm | -269–260 °C, 100k flex cycles, Dk≈3.3 | Expensive (~¥30/m²), moisture-sensitive | Foldable phones, engine bays, high-frequency |
| Polyester (PET) | 25–125 µm | Cheap (~¥10/m²), 5 mm bend radius | ≤120 °C, shrinks during soldering | Home-appliance static cables, disposable wearables |
| PEN | 25–75 µm | 150 °C tolerant, hydrolysis-resistant | Limited suppliers | Automotive interiors, humid environments |
| LCP | 25 µm | Dk=2.9, Df=0.002@10 GHz, Tg 220 °C | 2.5× PI price | Millimeter-wave flex, high-speed |
Flexible PCB Capabilities
| Process Parameter | Sample | Batch |
| Layers | 18L | 16L |
| Minimum Dielectric Thickness (µm) | 12.5 | 12.5 |
| Minimum BGA (µm) | 100 | 150 |
| Minimum Board Thickness (µm) | 50 | 50 |
| Maximum Panel Size (mm) | 610*1200 | 610*1200 |
| Minimum Base Copper Thickness (µm) | 6 | 9 |
| Maximum Base Copper Thickness (µm) | 35 | 35 |
| Minimum Line Width/Spacing (µm) | 35/35 | 40/40 |
| Graphic-to-Layer Alignment Tolerance (µm) | ±20 | ±50 |
| Minimum Graphic-to-Board Edge Tolerance (mm) | 0.07 | 0.1 |
| Etching Tolerance (µm) | ±15 | ±20 |
| Minimum Hole Diameter (µm) | Through-hole 0.075 | 0.1 |
| Blind Hole 0.05 | 0.05 | |
| Hole Position Tolerance (mm) | ±0.05 | ±0.05 |
| Impedance Control | ±5% | ±10% |
| Outline Tolerance (mm) | ±0.05 | ±0.1 |
| Surface Finishing | HASL, ENIG, ImAg, OSP, Ni-Pd-Au, E-Gold | HASL, ENIG, ImAg, OSP, Ni-Pd-Au, E-Gold |
| Stiffener Type | FR-4 / PI / Steel Sheet | FR-4 / PI / Steel Sheet |
| Stiffener-to-Board Tolerance (mm) | ±0.1 | ±0.2 |
| HDI | 6-layer any-layer interconnect | 4-layer any-layer interconnect |
| Flexible High-Frequency Multilayer/LCP Material | OK | OK |
Why Choose Our Flex PCB Services?
One-on-One Quote
Simply upload your .gbr file to receive a quotation feedback within 24 hours. Our professional engineers will analyze your design to avoid misunderstandings, actively communicate with you, and provide a reasonable price.
High-Quality Production
We maintain a rigorous and responsible attitude toward materials, processes, surface treatments, A.O.I, and flying probe testing, ensuring consistent high quality from prototype manufacturing to mass production.
Fast Lead Time
Equipped with advanced machinery and a professional engineering team to ensure fast delivery. We prioritize orders based on requirements and complexity. Customized delivery solution is also available to tailored to your needs.
Instant Communication
For your benefit, we provide full-cycle technical support for each customer from quotation to delivery. We will respond quickly to any questions until you confirm satisfactory flexible PCBs.
Flexible PCB Standards
Zintilon ensures quality through our Rigid PCB design and manufacturing standards from design to delivery by follow up IPC standards (IPC-2221C, IPC-6012E) to ensure manufacturability and reliability.
Item
Subitem
Spec
Layer Count & Zones
Min Bend Radius Dynamic flex
Layer Limit 1–2 layers
Min Bend Radius Multilayer away from bend
Layer Limit use “rigid islands”
Min Bend Radius One-time crease
Layer Limit single-layer, adhesive-less, copper on neutral axis
Trace Geometry
Min Bend Radius Corners
Layer Limit arc ≥ R=0.5 mm, no 90°
Min Bend Radius Line-width changes
Layer Limit use teardrops
Min Bend Radius Bend axis crossing
Layer Limit run traces perpendicular to bend
Vias & Pads
Min Bend Radius Micro-vias
Layer Limit laser 50–100 µm, bury in rigid island; avoid in dynamic zone
Min Bend Radius Pads
Layer Limit enlarge copper ring ≥0.2 mm, teardrop reinforcement; oval pads in flex zone
Flexible PCB Guidelines
Ensure precise tolerances, select appropriate materials, maintain clear CAD designs, and follow IPC for best results. Zintilon delivers accuracy, quality, and consistency in every PCB prototype.
Application
Min Bend Radius
Layer Limit
Copper Position
Flex-install
Min Bend Radius 6× board thickness
Layer Limit ≤2 L
Copper Position Any
Dynamic flex
Min Bend Radius 31× board thickness
Layer Limit ≤2 L
Copper Position Neutral axis
One-time crease
Min Bend Radius 0 (set crease)
Layer Limit 1 L
Copper Position Neutral axis
Our Flexible PCB Services for Various Industrial Applications
Prototyping and production PCBs from Zintilon have been applied to the various walks of life. The brilliant custom flexible PCBs simplifies the process of obtaining good-quality production PCB.
Flexible PCB FAQs
Project lead time and cost depend on its complexity. Zintilon will spare no effort to provide the most competitive prices and the fastest delivery time.
We understand that clients may need to make some adjustments after receiving the sample. Minor modifications can be done free of charge. However, if the modifications are substantial, we will need to reassess the price and delivery time.
We accept T/T and PayPal payments.
Got any more questions?
Ultimate Guide
to Flexible PCB
to Flexible PCB
Flexible PCB Manufacturing
Various and Robust Flexible PCB Services
Prototype
Prototyping
From Gerber files to circuit boards, our professional engineering team provides you with the highest quality flexible PCB manufacturing services. We meticulously control every detail of the process, including drilling, electroplating, and AOI, ensuring precise control over trace spacing, thickness, and panel dimensions. We are committed to providing you with the most reliable flexible PCBs.
- Complete production line
- Professional engineering support
- 10+ years‘ manufacturing experience
Production
Production
We have our own production lines and a robust manufacturing network. From flexible PCB design, engineering, and manufacturing, we have sufficient capacity to provide you with professional and fast delivery services, whether for small or large batches. We spare no effort in providing consistent mass production services for your products.
- Strong supply chain team
- Competitive pricing
- One-stop service from design to delivery
Let’s Build Something Great, Together
