Rigid-Flex PCB Fabrication

Rigid-Flex PCB Fabrication Service

Capel's 15-year Rigid flexible printed circuit board technology expert team

-provide valuable insights and guidance to our customers;

-deep understanding of the technical aspects of rigid-flex circuit board technology enables them to offer solutions tailored to each customer's unique requirements.

-integrate cutting-edge technology and design principles into their products,ensures Capel's customers receive state-of-the-art rigid-flex circuit boards that meet or exceed industry standards.

Rigid-Flex PCBs production capacity can reach more than 70000sqm per month

--manage high-volume orders and meet tight production schedules. Whether you require small or large quantities, we can fulfill your order requirements promptly and efficiently.

Support customized 2-32 layer high-precision rigid flexible pcb circuit board

-advanced technology, equipment, and processes to ensure accurate and reliable production. Our attention to detail, stringent quality control measures, and comprehensive testing help us deliver high-quality rigid flexible PCBs that meet the highest industry standards.

6 layer rigid flex pcb boards

4 layer rigid-flex pcb boards

4 layer rigid flexible pcb boards

14 layer High-density rigid flex pcb boards

2 layer Rigid-Flex PCB

8 layer rigid flexible circuit board

10 layer printer circuit board

12 layer rigid flex circuit boards

Application Cases Of Rigid-Flex PCB Circuit Boards

Provide reliable solutions in manufacturing rigid-flex circuit boards for customers in the wearable devices, medical equipment, aerospace and defense systems, automotive systems, consumer electronics, industrial automation, and telecommunications.

-Customized rigid flexible PCBs that meet their specific requirements;

-Depending on your industry-specific needs, we can provide rigid flexible printed circuit boards with specialized materials such as high-temperature resistant materials for automotive and aerospace applications, as well as medical-grade materials for medical device applications. We also keep updated with the latest rigid-flex PCB manufacturing technologies to meet the evolving demands of these industries.

2-layer Rigid-Flex Board in Automotive Gear Shifter

2 layer Rigid-Flex PCB for Electrocardiogram (ECG) machine Medical Device

4 layer FPC PCBs are applied to Intelligent Sweeping Robot

8 layer Rigid Flexible Circuit Boards for communication 5G

10 layer Rigid-Flex Circuit Boards for Industrial Control Equipment

2 layer FPC Boards are applied to Smart Lock

4 layer FPC PCB Boards are applied to Thermostats Smart Home

Rigid flex pcb applicated in Blood Pressure Medical Devices

Rigid Flexible PCB Fabrication Process

1. Cutting: Cutting of hard board base material: Cut a large area of ​​copper-clad board into the size required by the design.

2. Cutting the flexible board base material: Cut the original roll material (base material, pure glue, covering film, PI reinforcement, etc.) into the size required by the engineering design.

3. Drilling: Drill through holes for circuit connections.

4. Black hole: Use potion to make the toner adhere to the hole wall, which plays a good role in connection and conduction.

5. Copper plating: Plate a layer of copper in the hole to achieve conduction.

6. Alignment exposure: Align the film (negative) under the corresponding hole position where the dry film has been pasted to ensure that the film pattern can correctly overlap with the board surface. The film pattern is transferred to the dry film on the board surface through the principle of light imaging.

7. Development: Use potassium carbonate or sodium carbonate to develop the dry film in the unexposed areas of the circuit pattern, leaving the dry film pattern in the exposed area.

8. Etching: After the circuit pattern is developed, the exposed area of ​​the copper surface is etched away by the etching solution, leaving the pattern covered by the dry film.

flex pcb assembly

flex pcb assembly

9. AOI: Automatic optical inspection. Through the principle of optical reflection, the image is transmitted to the equipment for processing, and compared with the set data, the open and short circuit problems of the line are detected.

10. Lamination: Cover the copper foil circuit with an upper protective film to prevent circuit oxidation or short circuit, and at the same time function as insulation and product bending.

11. Laminating CV: Press the pre-laminated covering film and reinforced plate into a whole through high temperature and high pressure.

12. Punch: Use the mold and the power of the mechanical punch to punch the work plate into the shipping size that meets the customer's production requirements.

13. Lamination (superposition of rigid-flex pcb boards)

14. Pressing: Under vacuum conditions, the product is gradually heated, and the soft board and hard board are pressed together through hot pressing.

15. Secondary drilling: Drill the via hole connecting the soft board and the hard board.

16. Plasma cleaning: Use plasma to achieve effects that conventional cleaning methods cannot achieve.

17. Immersed copper (hard board): A layer of copper is plated in the hole to achieve conduction.

18. Copper plating (hard board): Use electroplating to thicken the thickness of hole copper and surface copper.

19. Circuit (dry film): Paste a layer of photosensitive material on the surface of the copper-plated plate to serve as a film for pattern transfer. Etching AOI wiring: Etching away all the copper surface except the circuit pattern, etching out the required pattern.

20. Solder mask (silk screen): Cover all lines and copper surfaces to protect the lines and insulate.

21. Solder mask (exposure): The ink undergoes photopolymerization, and the ink in the screen printing area remains on the board surface and solidifies.

22. Laser uncovering: Use a laser cutting machine to perform a specific degree of laser cutting on the position of the rigid-flex junction lines, peel off theflexible board part, and expose the soft board part.

23. Assembly: Paste steel sheets or reinforcements on the corresponding areas of the board surface to bond and increase the hardness of important parts of the FPC.

rigid flexible pcb assembly

Rigid flexible pcb assembly

24. Test: Use probes to test whether there are open/short circuit defects to ensure product functionality.

25. Characters: Print marking symbols on the board to facilitate the assembly and identification of subsequent products.

26. Gong plate: Use CNC machine tools to mill out the required shape according to customer requirements.

27. FQC: The finished products will be fully inspected for appearance according to customer requirements, and defective products will be picked out to ensure product quality.

28. Packaging: The boards that have passed the full inspection will be packed according to customer requirements and shipped to the warehouse.

rigid flexible pcb fabrication process

Turkey Rigid Flexible PCB Assembly

Provide expertise and assistance during the design phase, helping customers optimize their designs
for functionality, reliability, and cost-effectiveness;

Being able to produce small quantities of rigid-flex PCB prototypes in a timely manner, allowing customers to evaluate and validate their designs before proceeding with mass production;

Maintain detailed documentation throughout the assembly process, including bills of materials (BOMs), assembly instructions, and test records;

On-time delivery(Capel has efficient production planning, effective resource management, and close coordination with customers throughout the manufacturing process.);

Address any concerns or issues that may arise post-delivery and provide prompt technical support or warranty services if required.

First Artide Testing

Mass Production

Reflow Soldering

Flying Probe Test

PCB Assembly



Automatic Shooting

Rigid Flexible PCB Fabrication Advantages

Fully automated and high-precision production equipment

-minimize human errors, improve efficiency, and enhance the overall quality of our rigid flex printed circuit boards.

Capel has its own R&D base, production factory, and patch factory for rigid-flex circuit boards

-continuous research and development to create innovative solutions and improve the performance of our customers products.

-Capel has full control over the manufacturing process, ensuring quality control and efficient production,has shorter lead times and faster delivery.

-Capel can handle repairs and modifications to the rigid-flex circuit boards they produce,provide after-sales support and ensure customer satisfaction.

Continuous innovation of excellent and advanced process technology

-We prioritize innovation and constant improvement in our rigid flexible PCB fabrication process,continuously explores and adopts new and advanced technologies,provide you with cutting-edge solutions and ensure that your rigid flexible PCBs boards meet the latest technical standards.

-Optimize the manufacturing process to improve efficiency and reduce costs,minimize material waste, shorten lead times, and offer cost-effective solutions to our customers.


Automatic reinforcement

Automatic VCP

DES Line

LDI Exposure


Hot Pressing Process

Automatic V-cutting

Rigid Flexible PCB Production Capability

Category Process Capability Category Process Capability
Production Type Single layer FPC flex PCB
Double layers FPC flec PCB
Multilayer FPC
Aluminum PCB
Rigid-Flex PCB
1-30 layers FPC Flexible PCB
2-32 layers Rigid-FlexPCB
1-60 layers Rigid PCB
HDI Boards
Single layer FPC 4000mm
Doublelayers FPC 1200mm
Multi-layers FPC 750mm
Rigid-Flex PCB 750mm
27.5um /37.5/ 50um /65/75um
100um /125um / 150um
Rigid-Flex PCB025-60mm
Tolerance of
PTH Size
Immersion Gold/mmersion
Silver/Gold Plating
/Tin Plating/OSP
Stiffener FR4 /PI/ PET /SUS /PSA/Alu
Orifice Size
Min 0.4mm Min Line Space width 0.045mm/0.045mm
+0.03mm Impedance 500-1200
Copper Foil
9um/12um /18um /
35um /70um/100um
Tolerance ot
+0.05mm The Min Flush Width 0.80mm
Min Via Hole 0.1mm lmplement
Certifications ULand ROHS
IS0 9001:2015
Patents model patents
invention patents

Quality Control for Rigid Flexible PCB Production

Complete quality control system

- We have implemented a comprehensive quality control system to ensure the highest standards in rigid flexible PCB production(material inspection, process monitoring, product testing, and evaluation)

Our operation is ISO 14001:2015 , ISO 9001:2015, IATF16949:2016 certified

-our commitment to quality management, environmental sustainability, and continuous improvement,our dedication to delivering reliable and high-quality rigid-flex circuit boards.

Our products are UL and ROHS marked

-ensures that our rigid flexible PCBs meet safety standards and comply with industry regulations,free from hazardous substances,make them environmentally friendly and safe for use in various applications

Obtained more than 20 utility model patents and invention patents

-our focus on developing unique and creative solutions in rigid flexible PCB manufacturing,Our commitment to innovation ensures that you receive cutting-edge products that meet your specific requirements.


Two-dimensional test

AOI Testing

Impedance Tester

Flying Probe Test

X-RAY Inspection

Bending Tester

Halogen Tester

Quick Turn Rigid-Flex PCB Prototyping

24-hour non-stop rigid flexible circuit board prototype production service

Delivery for small batch orders usually takes 5-7 days

Mass production delivery usually takes 10-15 days

Production Number of layers Delivery time (business days)
Samples Mass Production
FPC 1L 3 6-7
2L 4 7-8
3L 5 8-10
For FPC flexible PCBs with more than 3 layers, add 2 business days for each additional layer
HDI buried
blind vias
PCB and
2-3L 7 10-12
4-5L 8 12-15
6L 12 16-20
8L 15 20-25
10-20L 18 25-30
SMT: Add an additional 1-2 business days to the above delivery time
RFQ:2 working hours                            CS:24 working hours
EQ:4 working hours                               Production capacity: 80000m/month

Instant Quote for Flexible PCB and Flex PCB Assembly

Capel produces in its own factory and is controlled by a team of experts with 15 years of experience to ensure that every product is 100% qualified.