Flex PCB Manufacturer
Get custom flexible PCBs manufactured to your space, bending, and assembly requirements. LZJPCB supports 1–8 layer flex circuits with PI, PET, and LCP material options, coverlay, stiffeners, and engineering review to reduce manufacturing risks.
- 1–8 Layer Flex PCBs
- 0.06–0.4 mm Finished Thickness
- Custom Coverlay & Stiffeners
- 100% Electrical Testing
Flex PCB Types We Manufacture
Choose the right flexible PCB for your layer count, available space, bending requirements, and component assembly needs.
- Layer Count: 1–2 Layers
- Finished Thickness: 0.06–0.20 mm
- Base Materials: PI, PET, LCP
- Min Trace/Space: 2/2 mil
- Layer Count: 3–8 Layers
- Finished Thickness: 0.15–0.40 mm
- Min Mechanical Drill: 0.10 mm
- Surface Finishes: ENIG, OSP, Immersion Tin
- Layer Count: 3–8 Layers
- Min Trace/Space: 2/2 mil
- Min Laser Microvia: 0.075 mm
- HDI Structure: 1+N+1, 2+N+2
- Finished Thickness: 0.06–0.15 mm
- Layer Count: 1–2 Layers
- Base Materials: PI, PET, LCP
- Copper Thickness: 12–35 μm
- Layer Count: 1–2 Layers
- Base Materials: Transparent PET
- Substrate Thickness: 0.075–0.125 mm
- Min Trace/Space: 2/2 mil
- Layer Count: 1–2 Layers
- Copper Thickness: 2–4 oz
- Copper Foil: RA, ED
- Finished Thickness: 0.15–0.40 mm
- Flex PCB Layers: 1–8 Layers
- Stiffener Materials: PI, FR4
- Stiffener Thickness: 0.10–0.50 mm
- PCB Assembly: SMT & Component Integration
- Layer Count: 1–2 Layers
- Finished Thickness: 0.06–0.20 mm
- Copper Foil: Rolled Annealed (RA)
- Dynamic Bend Radius: ≥20× Finished Thickness
Flex PCB Materials You Need to Know
Choose the right flex PCB material for your bending requirements, operating temperature, electrical performance, and budget.
Get heat-resistant, flexible circuits for compact electronics, multilayer designs, and applications requiring controlled bending performance.
- High-temperature processing compatibility
- Multilayer & fine-pitch circuit support
- RA copper, coverlay & stiffener options
Meet your high-frequency and moisture-sensitive design requirements with low-moisture-absorption LCP substrates and controlled electrical properties.
- Low moisture absorption
- High-frequency & RF applications
- Controlled impedance & dielectric performance
Reduce material costs for lower-temperature applications with lightweight, thin, and flexible polyester circuits.
- Cost-effective flexible substrate
- Thin & lightweight circuit designs
- Low-temperature assembly processes
Flex PCB Coverlay & Stiffener Options
Protect your flexible circuits and reinforce connector or component areas with custom coverlay and stiffeners matched to your design.
Flex PCB Stiffeners
Keep your connectors secure and component areas supported without restricting the sections your flex PCB needs to bend.
- Polyimide (PI) & FR4 stiffeners
- Custom thickness & placement
- ZIF connector & SMT support
- Bend-area clearance control
Flex PCB Coverlay
Protect your copper traces from abrasion and electrical exposure while keeping pads and contacts accessible for assembly.
- Polyimide coverlay & custom openings
- Precision pad & finger alignment
- Controlled adhesive & lamination
- Custom bend-area coverage
Flex PCB Thickness, Copper & Via Options
Match your flex PCB thickness, copper weight, and via structure to your bending, electrical, and assembly requirements.
Flex PCB Thickness
Keep your circuits thin and flexible while reinforcing areas that require connector or component support. Finished flex thickness ranges from 0.06 to 0.40 mm.
- Thin stackups for your bending requirements
- Controlled thickness changes to reduce stress
- Custom stiffeners for mounting and insertion support
Flex PCB Copper Thickness & Via Options
Balance current capacity, routing density, and flexibility with suitable copper thickness and via structures.
- Rolled annealed (RA) & electrodeposited (ED) copper
- Copper thickness matched to current and bend radius
- Plated through-holes, blind & buried vias
- Keep vias outside active bending zones
Flex PCB Design & DFM Support
Reduce bending failures and assembly risks with engineering reviews of your flex PCB layout, stackup, coverlay, and stiffener requirements.
Flex PCB Design & DFM Guidelines
Keep your flexible circuits reliable through bending with proper trace routing, copper selection, and bend-area design.
- Static & dynamic bend radius review
- Traces perpendicular to bend lines
- Vias & pads outside active bend zones
- Staggered copper & smooth trace transitions
Flex PCB Design File Review
Get your KiCad, Altium, or other PCB design exports reviewed for manufacturing and assembly compatibility before production.
- Gerber, ODB++ & drill file review
- Stackup, copper & thickness verification
- Coverlay openings & stiffener drawings
- Bend zones, connectors & assembly notes
Flex PCB Applications
Fit your circuits into curved, compact, or moving assemblies with flexible PCBs designed for your space, bending, and electrical requirements.
Flexible LED PCB
Fit your LED circuits into curved housings and narrow lighting channels with custom flex PCBs designed for LED spacing, current capacity, and thermal management.
- Custom LED spacing & current capacity
- Copper sizing for thermal management
- Curved housings & narrow channels
- Pad support & surface finish options
Flexible Circuit Cables & Harnesses
Replace bulky wiring with thin, custom-shaped flexible circuits that simplify board-to-board connections and fit into tight spaces with reinforced connector areas.
- Flat repeatable routing patterns
- Reinforced connector & finger areas
- Shielding options available
- 100% electrical test included
Flex PCB Prototyping & Quick-Turn Manufacturing
Get custom flex PCB prototypes to validate your design, or request expedited manufacturing when your project schedule is tight.
Flex PCB Prototyping
Validate your flex PCB's fit, bend geometry, and connector support before moving into production.
- Bend radius, coverlay & stiffener checks
- 1–8 layer flex PCB manufacturing
- AOI, dimensional & 100% electrical testing
Quick-Turn Flex PCB Manufacturing
Need your flexible PCBs fast? Get rapid engineering review, material availability checks, and an expedited production schedule for your design.
- Gerber, stackup & DFM checks
- PI materials, coverlay & tooling availability
- Priority production & confirmed lead time
Flex PCB Quality Control & Reliability Testing
Keep your flexible circuits reliable through bending and assembly with inspections covering copper traces, coverlay, stiffeners, dimensions, and electrical performance.
Why Choose LZJPCB for Flex PCB Manufacturing
With 20 years of PCB manufacturing experience, 50+ engineers, and 5,000+ PCB/PCBA projects, LZJPCB supports your custom flex circuits from prototype to volume production.
Flex PCB Case Studies
See how custom flex PCB manufacturing addresses bending, connector integration, and high-density routing challenges.
Curved LED Flex PCB
For a curved automotive ambient lighting strip, custom flex layouts with controlled copper thickness achieved a 5mm bend radius across 2,000 units.
View Case StudyConnector-to-Connector Flex PCB
For a wearable device interconnect, PI stiffeners and reinforced connector areas maintained continuity through 10,000 bend cycles on 500 pieces.
View Case StudyMultilayer Flex PCB for Compact Electronics
For a compact medical sensor module, a 6-layer flex stackup with precision coverlay alignment passed electrical inspection on 1,000 boards.
View Case StudyFlex PCB Cost Calculator
For an exact build quote, email jayden@lzjpcb.com or upload your files below.
Flex PCB Assembly & Soldering
Get your flexible PCBs assembled and soldered with precision placement, custom support fixtures, and controlled thermal processes to protect your circuits during production.
Flex PCB Assembly
Your flexible circuits are supported during component placement and inspection to reduce deformation, misalignment, and assembly defects.
- SMT, THT & BGA Assembly
- 01005, QFN, 0.35 mm BGA & PoP
- Custom Fixtures & Stiffener Support
- 3D SPI, AOI & X-ray Inspection
Flex PCB Soldering
Protect your flex PCB pads and components from excessive heat and mechanical stress with controlled soldering processes.
- Reflow, Selective & Hand Soldering
- Material-Specific Thermal Profiles
- Temperature & Solder-Joint Control
- Pad-Lift & Solder-Joint Inspection
Get a Flex PCB
Manufacturing Quote
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Frequently Asked Questions About Flex PCB
Direct answers for material and structure selection, tied to the released fabrication data.
What Is a Flex PCB?
A flex PCB uses conductive copper on a flexible dielectric film so the circuit can bend, fold or fit a three-dimensional assembly. A complete build defines the material, layer stack, copper, coverlay, stiffeners, bend area and electrical test.
Is FR4 Used in Flex PCBs?
The flexible region of a true FPC uses a flexible film such as Polyimide, PET or LCP. FR4 is used as a local stiffener beneath connectors or components, or as the rigid region of a separate rigid-flex design. FR4 does not replace the moving film in a dynamic flex zone.
What Is Dynamic Flex PCB?
A dynamic flex PCB is designed for repeated bending cycles in service. It uses rolled annealed (RA) copper, minimum trace widths, and bend-radius controls to extend flex life. The build record states the approved radius, copper direction and target cycle count.
What files do I need to get a flex PCB quote?
Send Gerber or ODB++, NC drill files, stackup, coverlay and stiffener drawings, bend notes, BOM if assembly is required, and your target schedule. The more complete your package, the faster and more accurate the quotation.
Send the fabrication data, material, layer count, thickness, copper, coverlay, stiffener, bend condition, quantity and assembly files.
