Rigid-Flex PCB Assembly


Rigid flex circuit boards consist of both rigid and flexible substrates that are laminated together to form a single circuit board. Double sided or multilayer Rigid Flex Circuit Boards are interconnected by plated through holes (PTH). The flexible substrates are designed to be in a constant state of flex and are usually formed into the flexed curve during manufacturing or installation.

Kingford provides small to fortune 500 companies from around the world with their component sourcing, PCB manufacturing, assembly, and testing all from a single source. We provide high quality rigid-flex PCB assembly services at cost-effective prices. Let us earn your PCB business today by sending us your Gerber files and/or specifications for your next project.

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Benefits of Rigid-Flex PCBs

Careful consideration of Rigid-Flex solutions and a proper assessment of the available options at the early stages in the rigid-flex PCB design phase will return significant benefits:

  • Space requirements can be minimized by applying 3D
  • By removing the need for connectors and cables between the individual rigid parts, the board size and overall system weight can be reduced.
  • By maximizing space, there is often a lower count in parts.
  • Fewer solder joints assure higher connection reliability.
  • Handling during assembly is easier in comparison with flexible boards.
  • Simplified PCB assembly processes.
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Through Hole PCB assembly

Rigid-Flex PCB Assembly Capabilities

Capability Process Capability Parameter
Order Quantity ≥1PC
Quality Grade IPC-A-610
Lead Time 24 hours expedited service can be offered. 3- 4 days normally for PCBA prototype orders.
Size 50*50mm~510*460mm
Board Type Rigid PCB, Flexible PCB, metal core PCB
Min Package 01005 (0.4mm*0.2mm)
Mounting Accuracy ±0.035mm(±0.025mm) Cpk≥1.0 (3σ)
Surface Finish Lead/Lead-free HASL, Immersion gold, OPS, etc.
Component Sourcing Turnkey (All components sourced by PCBMay), Partial turnkey, Kitted/Consigned
BGA Package BGA Dia. 0.14mm, BGA 0.2mm pitch
SMT Parts Presentation Cut Tape, Partial reel, Reel,Tube, Tray, Laser-cut Stainless Steel
Quality Inspection Visual inspection, AOI checking, BGA placement – X-RAY checking
SMT Capacity 3 Million~4 Million Soldering Pad/day
DIP Capacity 100 Thousand Pins/day

Applications for Rigid-Flex Circuits

Rigid-Flex PCBs offer a wide array of applications, ranging from smart devices to cell phones and digital cameras. Increasingly, rigid-flex board fabrication has been used in medical devices such as pacemakers for their space and weight reduction capabilities. The same advantages for rigid-flex PCB usage can be applied to smart control systems.

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Why Choose Kingford for Rigid-Flex PCB Assembly Service

Delivery on time

We own a 4,000 square meters workshop, and are equipped with 7 fully automatic SMT placement lines and 2 DIP assembly lines. whether you are looking at a full production run or SMT PCB prototypes, you are assured of are quick turnaround times.

Quality Assurance

We have complete ISO9001, ISO13485, ISO14001, IATF 16949, UL and other system certifications, and our products meet environmental protection requirements.

All-round and Reliable Parts Supplier

Kingford cooperates with world-renowned component suppliers to ensure that the source of electronic components is plastic and the authenticity is guaranteed.

Professional customer service team

We have a complete and user-friendly pre-sales and post-sales management system, which can quickly and comprehensively respond to the individual needs of customers, and provide customers with technical support, production operations and order services 24 hours a day.


Q: What is rigid flex PCB?
A: Rigid-Flex circuit boards are composed of a combination of rigid and flexible circuit boards that are permanently connected to one another.



Q: What is flex PCB material?
A: While most standard PCBs have a fiberglass or metal base, flex circuit cores consist of a flexible polymer. The majority of flex PCBs have a polyimide (PI) film as a substrate.



Q: What are the advantages of rigid flex PCB?
A: It is lightweight and compact, hence, reduced packaging size. It can be designed to fit confined or smaller areas, contributing largely in product miniaturization. It can be bent and folded easily to fit perfectly into smaller devices.



Q: What is Flexible PCB assembly process?
A: Flex board assembly is the process of assembling components. This process is similar to that of rigid boards.



Q: what do you consider for flex PCB assembly?
A: Important flex PCB assembly specifications that a designer needs to know including base materials, number of layers and bend radius.



Q: What are the characteristics of flexible board components?
A: Characteristics of flex board assembly are application of auxiliary fixtures, low density, high quality requirements and high assembly cost.



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