Flex-rigid PCB

Flex-rigid PCB is a sheet that uses a blend of flexible and rigid board advances in an application. Most of the Flex-rigid PCB sheets comprise of different layers of flexible circuit substrates appended to at least one rigid sheet remotely and additionally inside, contingent on the design of the application. The flexible substrates are intended to be in a steady state of flex and are generally formed into the flexed bend during assembling or installation.

Designs for Flex-rigid PCB fabrication are more demanding as compared to the design of a classic rigid board setting, as these sheets are designed in a 3D space, which additionally offers more noteworthy spatial productivity. Folding, rolling and twisting the flexible board substrate to achieve its desired shape for the final application package by mapping the flexible rigid PCB is possible.

Benefits of Choosing Flex-Rigid PCB Board

While this sort of flexible circuit might be progressively costly to structure and deliver, it offers various significant benefits.

  • The use of 3D May limit space necessities
  • Reduced plate size and overall frame weight by eliminating the requirement for connectors and links between individual rigid components.
  •  By boosting space, there is frequently a lower count in the parts.
  • Fewer bind joints guarantee higher association dependability.
  • Handling during the gathering is simpler in correlation with the flexible sheets.
  •  PCB assembly processes can be simplified with flex rigid PCB.
  • Integrated ZIF contacts give basic secluded interfaces to the framework condition.
  • Test conditions are streamlined. A total test before establishment gets possible.
  • Logistical and get together expenses are altogether decreased with flex-rigid sheets.
  • It is possible to build the versatility of the mechanical design, which further increases the freedom of accommodation arrangements.

Also, flexible rigid PCBs can perform well even in the worst conditions, especially those that are particularly warm. For example, the flex-rigid PCB can do well even in the harshest situations, particularly those highlighting extraordinary warmth. A flex-rigid board is additionally simple to test, making it appropriate for prototyping

Flex Rigid PCB vs. A Flexible Circuit

A Flex-rigid PCB is a thing that the vast majority consider when they visualize a circuit board. These sheets interface electrical parts utilizing conductive tracks and different components, which are orchestrated on a non-conductive substrate. For flexible rigid PCB, most of the non-conductive substrate contains glass, thus enhancing the hardness and strength of the circuit board. A rigid circuit board gives incredible support to the components, just as fair thermal resistance.

Conductive tracks of flexible PCB are included on a non-conductive substrate, such boards use a flexible substrate, such as polyimide. The flexible base enables flexible circuits to dissipate heat, withstand vibration, and overlay up into different shapes. Due to their basic give, flex circuits are progressively utilized in innovative and compact hardware.

The Application of Flex Rigid PCB Manufacturing

Flexible rigid PCB has many Uses. They are utilized in the small consumer items such as multimedia players and telephones to avionics or modern military frameworks. The applications are listed below:
Applications in Medical Industry for Flex-rigid PCB
Pacemakers, handheld monitors, cochlear implants, imaging equipment, wireless controllers, drug delivery systems, among others.
Applications in Military Industry for Flex-rigid PCB
Communication systems, Weapons guidance systems, GPS, surveillance or tracking systems, aircraft missile-launch detectors, and others.
Applications in Aerospace Industry for Flex-rigid PCB
GPS, Radar equipment, control tower systems, radio communication systems, sensors, motion sensors, noise and vibration testing systems, environmental and climatic test chambers.
Applications in Telecommunication Industry for Flex-rigid PCB
Handheld units, Base stations, communication satellites, signal processing systems, wireless communication systems, routers and servers, transmission media, online signal expansion systems and much more.

Designing Tips and Materials for Flex-rigid PCB

During the Rigid-Flex PCBs configuration process, certain considerations must be considered for final item size varieties. In the assembling of Rigid-Flex sheets, the flexible polyimide center will recoil once the fortified copper foil is scratched away. This variety must be represented in the design procedure.
Bending portion to be bent and the emphasis on the bending coverage may lead to the stress fracture is required.
Flex-rigid PCB Materials

  • Substrates
    1. Polyimide
    2. Polyester (PET)
  •  Conductor Material
  •  Adhesives
    1. Polyimide Adhesives
    2. Polyester Adhesives
    3. Acrylic Adhesives
    4. Epoxies
  • Protective Coatings
    1. Cover Lays
    2. Cover-Coats

Other than these materials, there are a few other optional materials utilized in the manufacturing of flex-rigid PCB to expand their operational reliability and excellence. These incorporate anti-tarnishing coatings, and support substrates. PCB producers pick these materials according to the client requirements, and precise application prerequisites.
The material utilized for flex-rigid PCB extraordinarily decides the quality and the overall working of the rigid-flex sheets. As referenced before, board materials must be carefully picked after investigating a few criteria including shelf life, cost, and electrical prerequisites of the circuit, among others. This helps produce rigid-flex circuit sheets that give years of trouble-free and reliable assistance.

Rigid-Flex PCB Specification
Layer1-50 layers
MaterialFR-4, CEM-1, CEM-3, Hight TG, FR4 Halogen Free, FR-1, FR-2, Aluminum
Board Thickness0.2mm-7mm
Max. Finished Board Size500mm*500mm
Min. Drilled Hole size0.25mm
Min. Line Width0.075mm(3mil)
Min. Line Spacing0.075mm(3mil)
Surface Finish/TreatmentHALS/HALS lead-free, Chemical tin, Chemical Gold, Immersion gold Immersion
Copper Thickness0.5-4.0oz
Solder Mask Colorgreen/black/white/red/blue/yellow
Hole TolerancePTH: ±0.075, NTPH: ±0.05
MOKO Technology Offers You the Best Flex-rigid PCB Service

In case you are searching for a durable and reliable flex-rigid PCB, then you have landed in the right place. MOKO Technology is a famous name in the PCB businesses and we have years of experience in assembling flex-rigid PCB since 2006.

Our items are of premium quality and services are of a high standard. We have a huge arrangement with large scale manufacturing capacity. In this way, we can offer customized items according to your needs. Don’t hesitate to get in touch with us for an estimate or any further questions.

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