What Is A Rigid-Flex PCB?

Custom Rigid-Flex PCB Fabrication & Supply

As a leading China flex PCB supplier, we specialize in high-quality flex circuit manufacturing—from rapid-turn prototyping to full-volume flexible PCB fabrication. Upload your Gerber files now for a fast, reliable quote.

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What Is A Rigid-Flex PCB?

​Meaning

Rigid-Flex PCBs combine the best of both rigid and flexible circuit technologies into a single, unified board. This hybrid structure allows for complex three-dimensional designs, enabling electronic components to be mounted on both rigid sections while flexible layers provide interconnectivity across dynamic or confined spaces.

​Difference​

Unlike traditional rigid boards that require connectors or cables for interconnection, Rigid-Flex PCBs streamline the overall design by eliminating these components—resulting in improved reliability, reduced weight, and enhanced signal integrity.

Materials​

These boards are widely used in mission-critical and compact applications such as medical devices, aerospace systems, military equipment, cameras, and wearables, where high mechanical reliability, space savings, and resistance to vibration and bending are essential.

Why Choose Us

1

Responsive Customer Service

We specialize in full-cycle rigid-flex PCB production—from prototyping to mass production. Our in-house facilities are equipped with advanced processing lines tailored for complex rigid-flex structures, ensuring tight process control and consistent quality.

2

Engineering-Driven Support

Our experienced engineering team provides comprehensive DFM (Design for Manufacturability) analysis, helping customers optimize stack-up, impedance, and bend radius before fabrication begins. We support Gerber, ODB++, and IPC standards for seamless collaboration.

3

Certified Quality & Advanced Equipment

All of our manufacturing processes are ISO 9001, UL, and RoHS certified. With laser drilling, precision lamination, and AOI/X-ray inspection, we meet the high standards required for aerospace, military, and medical applications.

4

Fast Turnaround & Global Delivery

We offer expedited lead times for both prototypes and high-volume orders. With a flexible production model and global logistics network, we deliver to customers worldwide—on time, every time.

5

Responsive Customer Service

From quote to shipment, our dedicated support team provides 24/7 technical assistance and order tracking. Whether you’re a startup engineer or a Tier-1 OEM, we treat every project with precision and urgency.

Product Showcase

Manufacturing Process

01. Material Preparation

Select high-performance polyimide and FR4 laminates based on layer stackup and design.

02. Inner Layer Imaging & Etching

Create fine copper traces using photolithography and precision chemical etching.

03. Lamination of Rigid and Flex Layers

Bond rigid and flexible layers into a unified structure using heat, pressure, and alignment control.

04. Drilling & Copper Plating

Drill microvias and through-holes, then plate with copper to form reliable interlayer connections.

05. Outer Layer Imaging & Patterning

Define and etch the outer circuitry, ensuring signal integrity and trace accuracy.

06. Surface Finishing

Apply finishes like ENIG, HASL, or OSP to protect pads and improve solderability.

07. Coverlay & Stiffener Application

Add protective coverlays over flex zones and stiffeners under connectors or components.

08.Profiling & Final Testing

Laser-cut or route board outlines, then perform 100% E-test and visual inspection.

Capabilities

Capability Parameters
Layer

26L

26L

0.065 mm/0.065 mm

Min Hole/Pa Size

0.10/0.35 mm

Rigid-Flex Thickness

0.25-6.0mm

Drilling Accuracy

+/-0.05 mm

PTH Diameter Tolerance

+/-0.05 mm

Max Wpnl Size

620 mm x 500 mm

Finish Copper (Flex Part)

0.5-2oz

Finish Copper (Rigid Part)

1-4oz

Surface Treatment

ENIG

Electric Gold

IM-Ag

Electric Ag

HASL

HASL-LF

IM-Sn

Electric Sn

OSP

Caborn

Pt

NI-Pd-AU

Max Board Thickness: PTH Diameter

13:01

Build Time

7-20 Days

Application Industries

Medical Devices
Aerospace & Defense
Automotive Electronics
Consumer Electronics
Industrial Automation
Wearable technology

Application Industries

Design for Manufacturability

Every project receives a free DFM check before fabrication. We analyze your stack-up, trace width, bend radius, drill strategy, and impedance control to ensure your design is ready for production.

01

Stack-Up Optimization & Material Guidance

Our engineers assist with optimal material selection (PI, FR4, adhesiveless laminates), copper weights, and dielectric configurations based on your electrical and mechanical requirements.

02

Comprehensive File Support

We accept Gerber, ODB++, IPC-2581, and other mainstream formats. Our CAM team works closely with you to clarify build instructions, panelization needs, and stiffener placements.

03

Responsive Technical Communication

Get fast responses and expert feedback during the quoting, design, and production stages. We’re available via email, online chat, or phone to ensure your project moves forward smoothly.

04

FAQ

Q:What types of BGA packages can you handle?

We can handle virtually all BGA types, including PBGA, CBGA, µBGA, FCBGA, WLCSP, and stacked BGA.

Q:What's the smallest BGA pitch you can reliably assemble?

Flex PCBs are primarily made from polyimide (PI) or polyester (PET) substrates with copper foil layers. We also use adhesiveless laminates for high-reliability applications. Coverlays, stiffeners (FR4 or stainless steel), and surface finishes (ENIG, OSP) are added depending on the design.

Q:Do you provide BGA reballing and rework services?

Lead times depend on complexity and quantity:

  • Prototype Flex PCBs: 3–7 business days
  • Production Runs: 7–20 business days

Expedited options are available for urgent projects — contact us for a custom quote.

Q:How do you ensure the quality of solder joints in hidden areas under the BGA?

Yes. We offer full Rigid-Flex PCB manufacturing, including HDI and multilayer designs. Our process supports complex 3D assemblies and ensures precise layer registration and bend reliability.

Q:What's your typical turnaround time for BGA assembly projects?

Yes. We offer full Rigid-Flex PCB manufacturing, including HDI and multilayer designs. Our process supports complex 3D assemblies and ensures precise layer registration and bend reliability.

Q:Can you handle small-volume prototype orders?
  • Flex PCBs use flexible base materials and are designed to bend, fold, or twist during use.
  • Rigid PCBs are built on FR4 substrates and are not designed for movement.

Flex PCBs save space, reduce weight, and improve durability in dynamic environments.

Q:Do you provide DFM (Design for Manufacturability) reviews?

Absolutely. Our engineering team offers free DFM reviews, helping you optimize your design for manufacturability, cost efficiency, and long-term reliability. Upload your Gerber files, and we’ll evaluate them before production begins.

Q:What certifications and standards do your services comply with?

Yes. All our Flex PCBs are RoHS-compliant and manufactured to IPC-6013 and IPC-A-600/610 Class 2 or Class 3 standards, depending on application needs. Certifications and test reports are available upon request.

Q:Do you support special surface finishes like ENIG for BGA pads?

Yes. All our Flex PCBs are RoHS-compliant and manufactured to IPC-6013 and IPC-A-600/610 Class 2 or Class 3 standards, depending on application needs. Certifications and test reports are available upon request.

Q:Can you provide inspection reports and documentation for quality assurance?

Yes. All our Flex PCBs are RoHS-compliant and manufactured to IPC-6013 and IPC-A-600/610 Class 2 or Class 3 standards, depending on application needs. Certifications and test reports are available upon request.

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