Rigid Flex PCB

ModelRigid-Flex PCB
CertificationUL , ISO9001
Minimum Order Quantity1pcs
Packaging DetailsVacuum
Delivery TimeFastest 24 hours for prototype
Payment Terms T/T




Rigid flex PCB, also known as flexible printed circuit boards. combine the characteristics of both rigid and flexible circuit boards. They designed to provide a flexible connection between rigid sections of a PCB. allowing for increased design flexibility and space utilization in electronic devices.

Rigid-flex PCBs made up of multiple layers of flexible substrates, usually polyimide. which interconnected by rigid sections made of FR4 or similar rigid materials. The rigid sections provide stability and support for components. while the flexible sections allow the PCB to bend, twist, or fold as needed.


  • More than 10 years of flexible PCB manufacturing experience;
  • Provide with 1-10 layer flexible circuit board fabrication service;
  • Comply with ISO9001 & IPC level 2 or 3 standards
  • Provide fast turn multilayer flexible PCB prototype services;
  • The thickness of the multilayer FPC is 0.05-2.5mm, and the copper thickness is 1/3oz-2oz;
  • Supply 7*24 hours of sales, technical, and after-sales service support.

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Space-saving Design

flexibility pcb fpc Gesflex circuit

Rigid-flex PCBs allow for a more compact and space-efficient design. compared to using separate rigid and flexible PCBs. By eliminating the need for connectors, cables, and additional interconnects. rigid-flex PCBs can reduce the overall size and weight of the electronic device.

Improved Reliability

4 LAYER FLEX PCB- EMI Shielding and Signal Isolation

The absence of connectors and cables in rigid-flex PCBs reduces the potential points of failure. With fewer interconnections, there is less chance of signal loss. electromagnetic interference (EMI), or mechanical stress-related issues. This results in improved reliability and higher overall performance of the electronic system.

Increased Durability

4 LAYER FLEX Enhanced Power Distribution

Rigid-flex PCBs are more resistant to mechanical stress, vibrations. and thermal fluctuations compared to traditional PCBs. The combination of rigid and flexible materials allows the PCB to withstand bending, twisting. and other physical stresses without compromising its electrical integrity.

Simplified Assembly

4 LAYER FLEX PCB-Improved Signal Integrity

Rigid-flex PCBs can simplify the assembly process compared to using separate rigid and flexible boards. With fewer components, connectors, and interconnects, the assembly time and complexity reduced. This can lead to lower manufacturing costs and improved production efficiency.

Design Flexibility

4 LAYER FLEX PCB Better Thermal Management

Rigid-flex PCBs offer greater design flexibility. allowing engineers to create unique and innovative product designs. The combination of rigid and flexible sections enables the PCB to conform. to non-planar or irregular shapes, making it suitable for complex 3D designs. This flexibility opens up new possibilities for product miniaturization and improved aesthetics.

Cost Savings

flexible pcb Space Efficiency

While the initial cost of manufacturing rigid-flex PCBs higher than traditional PCBs. the overall cost savings can be significant. By eliminating the need for additional components, connectors, cables. and assembly processes, rigid-flex PCBs can reduce the bill of materials (BOM) cost. simplify logistics, and lower the total cost of the electronic system.


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Usually, Quick turn rigid-flex PCB refers to the expedited manufacturing. and production of rigid-flex PCBs within a shorter time compared to standard lead times. Quick turn services typically offered by PCB manufacturers. to meet urgent or time-sensitive project requirements. Here are some key points related to quick turn rigid-flex PCBs:

  • Rapid Prototyping
  • Fast Turnaround Time
  • Design Verification
  • Small to Medium Volume Orders
  • Streamlined Processes
  • Increased Cost
  • Collaboration with PCB Manufacturers

It’s important to note that the availability and specific turnaround times. for quick turn rigid-flex PCBs may vary among different PCB manufacturers. It’s recommended to consult with the manufacturer directly to understand their capabilities. lead times, and any additional costs associated with quick turn services.


The stack up of a rigid-flex PCB refers to the arrangement. and composition of the different layers that make up the PCB. The stackup configuration designed to accommodate both the rigid and flexible sections of the board. and ensure proper functionality and reliability. While specific stackup configurations may vary depending on the design requirements. here is a general overview of a typical rigid-flex PCB stackup

Rigid Layers:

The stackup begins with one or more rigid layers. which are typically made of FR4 or similar rigid materials. These layers provide structural support and stability to the PCB. The number of rigid layers can vary depending on the complexity of the design. and the required functionality.

Flexible Layers:

After the rigid layers, one or more flexible layers added. These layers are usually made of a flexible substrate material such as polyimide (PI). The flexible layers allow the PCB to bend, twist, or fold as required for the design. The number of flexible layers can vary depending on the flexibility needed and the design constraints.

Copper Foil Layers:

Each rigid and flexible layer typically has a copper foil layer bonded to it. These copper layers serve as the conductive traces and planes of the PCB. providing the electrical connectivity between components. and allowing the flow of signals and power throughout the board.

Prepreg Layers:

Prepreg layers are thin layers of epoxy resin impregnated with glass fiber. These layers placed between the copper layers. to provide insulation and bonding between them. The prepreg layers also contribute to the overall thickness and rigidity of the PCB.


Coverlay, also known as cover film or solder mask. A protective layer applied over the flexible sections of the PCB. It is typically made of a flexible polymer material such as polyimide. and serves to protect the copper traces from damage. provide insulation, and prevent solder bridges during assembly.

The exact number and arrangement of layers in a rigid-flex PCB stackup will depend on the specific design requirements. such as the number of signal layers, power planes, impedance control. and any specific mechanical or electrical constraints. Designers need to carefully consider the electrical, mechanical. and thermal characteristics of the materials used and the layer arrangement. to ensure the desired functionality, reliability, and manufacturability of the rigid-flex PCB.


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Rigid-flex PCBs constructed using a combination of materials. that provide the necessary flexibility, stability, and electrical performance. Here are some common materials used in the construction of rigid-flex PCBs:

Substrate Materials:

The rigid sections of the PCB typically use rigid substrate materials. such as FR4 (a flame-resistant glass-reinforced epoxy) . or similar materials with high mechanical strength and stability.

Flexible Sections: The flexible sections of the PCB employ flexible substrate materials. like polyimide (PI) or similar materials known for their excellent flexibility. thermal resistance, and dielectric properties.

Copper Foil:

Copper foils used to create conductive traces and planes. on both the rigid and flexible sections of the PCB. They provide electrical connectivity and signal transmission throughout the board.

Adhesive Materials:

Adhesive materials used to bond the rigid. and flexible layers together during the lamination process. They ensure a strong, reliable bond between the different layers of the rigid-flex PCB.


Prepreg, short for “pre-impregnated,” refers to a material. composed of a resin matrix impregnated with glass fibers. So , prepreg layers placed between the copper layers to provide insulation. improve mechanical strength, and enhance bonding during the lamination process.

Coverlay (Cover Film):

Coverlay, also known as cover film or solder mask. Has a protective layer applied over the flexible sections of the PCB. It is typically made of a flexible polymer material such as polyimide. Coverlay protects the copper traces from damage. provides insulation, and prevents solder bridges during assembly.

Surface Finish:

The exposed copper surfaces of the rigid-flex PCB may undergo surface finishing processes. to protect them from oxidation and improve solderability. Common surface finishes include HASL , ENIG , OSP, immersion tin, or immersion silver.

It’s important to note that the specific choice of materials. for rigid-flex PCBs can vary depending on the design requirements. environmental conditions, and specific application needs. PCB manufacturers and designers carefully select materials. that meet the electrical, mechanical, thermal, and reliability requirements of the intended application.


Explore the superior production capabilities of GESFLEX CIRCUIT. and see firsthand how our expertise in rigid-flex PCB manufacturing can elevate your projects. We ensure top-notch quality and precision in every board we produce. thanks to our advanced technology and stringent quality control measures. Our dedicated team manages each step of the process meticulously. guaranteeing that every product meets the highest standards of excellence. Trust GESFLEX CIRCUIT for your rigid-flex PCB needs. and experience the unmatched reliability and performance that sets us apart. Click here to discover more about our production capabilities and how we can support your success.

Rigid Flex PCB Capabilities

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flexible pcb board manufacturing process-design

Step1: Design and Material Selection:

The process begins with the design of the rigid-flex PCB using specialized PCB design software. Engineers determine the layer stackup, component placement, routing, and any specific design requirements. They also consider factors such as flexibility, signal integrity. thermal management, and manufacturing constraints.

Step2: Substrate Preparation:

Based on the design requirements, appropriate materials. selected for the rigid and flexible portions of the PCB. This includes choosing rigid substrate materials. such as FR4 for the rigid sections and flexible substrates. like polyimide (PI) for the flexible sections. Copper foils of the required thickness are also selected.

flexible pcb board manufacturing process-material prepartion
flexible pcb board manufacturing process-copper cladding

Step3: Circuit Imaging

The circuit patterns and traces transferred onto the copper layers of the rigid and flexible substrates. through a process called circuit imaging. This is typically done using photolithography. where a photoresist applied to the copper surfaces. exposed to UV light through a photomask. and chemically developed to create the desired circuit pattern.

Step4: Conductive Layer Deposition

A layer of conductive material, usually copper, deposited onto the prepared substrate. This done using various techniques such as lamination, electroplating. or adhesiveless copper clad laminate (CCL) bonding. The copper layer forms the conductive traces. and any required pads or features on the single-layer flex PCB.

flexible pcb board manufacturing process-etching
flexible pcb board manufacturing process-drilling

Step5: Plating and Etching

The exposed copper areas are then plated to increase their thickness and ensure proper conductivity. This is typically done through electroplating. where a thin layer of copper deposited onto the exposed areas. After plating, the excess copper etched away using chemical etchants. leaving behind the desired circuit traces.

Step6 :Drilling and Patterning

Precision holes drilled into the rigid-flex PCB to accommodate component leads. and vias for interconnecting layers. Laser drilling or mechanical drilling methods used, depending on the design requirements. The drilled holes are then plated to provide electrical continuity between the layers.

flexible pcb board manufacturing process- lamination
flexible pcb board manufacturing process-Coverlay

Step7 : Lamination and Pressing

The rigid and flexible layers, including the copper layers, prepreg layers. and adhesive layers, stacked together in the desired order. The stackup is then laminated and pressed under heat. and pressure to bond the layers into a single rigid-flex PCB.

Step 8 : Surface Finishing

The exposed copper surfaces are typically coated with a surface finish. to protect them from oxidation and improve solderability. Common surface finishes include HASL, ENIG, OSP and immersion tin or silver.

flexible pcb board manufacturing process-surface finishing
flexible pcb board manufacturing process-testing

Step 9 : Component Assembly

Once the rigid-flex PCBs fabricated, the components assembled onto the board. using automated surface mount technology (SMT) or through-hole assembly techniques. Solder paste applied to the board, components placed in their designated locations. and the board is then heated to melt the solder and create electrical connections.

Step 10 : Testing and Inspection

After assembly, the rigid-flex PCBs undergo thorough testing. and inspection to ensure they meet the required electrical and mechanical specifications. This includes checks for continuity, signal integrity, impedance, and functionality. Various testing methods such as automated optical inspection (AOI). electrical testing, and functional testing employed.

flexible pcb board manufacturing process-assembly

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IF you are looking for high quality flexible pcb board. and flexible pcb board for your projects. GESFLEX CIRCUITS is a good choice as a competitive China flexible pcb board. We have been making flex PCBs for large volume production as well as prototypes since the 2014. We use unique, custom-built tools that give us the edge over our competitors. Beacuse rich experience, advanced equipment, stable PCB fabricaition. strict quality control all represent our strength . you can upload your Gerber files to our cloud, for an instant quote.

flex pcb fabrication


consumer electronics for flexible pcb

Consumer Electronics

Rigid-flex PCBs are extensively used in consumer electronics products. particularly in devices where space optimization is important. Examples include smartphones, tablets, laptops, digital cameras, gaming consoles. and wearables like smartwatches and fitness trackers.



Rigid-flex PCBs employed in automotive applications where compact design, high reliability. and resistance to vibrations and temperature variations are necessary. They used in advanced driver-assistance systems (ADAS). infotainment systems, engine control units (ECUs), and automotive lighting systems.

medical devices for flexible pcb

Medical Devices

Rigid-flex PCBs employed in medical devices where compact size. flexibility, and reliability are crucial. They used in medical implants, wearable health monitoring devices. diagnostic equipment, surgical instruments, and portable medical devices.

Industrial Electrical Equipment

Industrial Equipment

Rigid-flex PCBs utilized in various industrial equipment and machinery. They are suitable for applications that require flexibility. durability, and resistance to environmental factors. Examples include robotics, automation systems, control panels, sensors, and instrumentation.

flexible circuits for IOT

Communication Devices:

Rigid-flex PCBs used in communication systems. such as antennas, base stations, routers, and network equipment. They provide flexibility in design, compactness, and reliable signal transmission.