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Double Sided Flexible Printed Circuit Board Manufacturers FR-4 Rigid Flex PCB

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Good quality Flexible PCB Board
Good quality Flexible PCB Board
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Rigid Flex PCB

  • High Precision Rigid Flex PCB suppliers
  • High Precision Rigid Flex PCB suppliers


Rigid flex printed circuit boards are boards using a combination of flexible and rigid board technologies in an application. Most rigid flex boards consist of multiple layers of flexible circuit substrates attached to one or more rigid boards externally and/or internally, depending upon the design of the application. 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.

Rigid flex designs are more challenging than the design of a typical rigid board environment, as these boards are designed in a 3D space, which also offers greater spatial efficiency. By being able to design in three dimensions rigid flex designers can twist, fold and roll the flexible board substrates to achieve their desired shape for the final application's package.



Production Process

Whether producing a rigid flex prototype or production quantities requiring large scale rigid flex PCB fabrication and PCB assembly, the technology is well proven and reliable. The flex PCB portion is particularly good in overcoming space and weight issues with spatial degrees of freedom.

Careful consideration of flex-rigid solutions and a proper assessment of the available options at the early stages in the rigid flex PCB design phase will return significant benefits. It is critical the rigid flex PCB fabricator is involved early in the design process to ensure the design and fab portions are both in coordination and to account for final product variations.

The rigid flex manufacturing phase is also more complex and time consuming than rigid board fabrication. All the flexible components of the rigid flex assembly have completely different handling, etching and soldering processes than rigid FR4 boards.




Rigid flexible PCBs offer a wide array of applications, ranging from military weaponry and aerospace systems 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 military weaponry and weapon control systems.

In consumer products, rigid flex doesn't just maximize space and weight but greatly improves reliability, eliminating many needs for solder joints and delicate, fragile wiring that are prone to connection issues. These are just some examples, but rigid flex PCBs can be used to benefit nearly all advanced electrical applications including testing equipment, tools and automobiles. Not sure what technology needs to be used for your project? Call our experts and we can help you figure out whether you need rigid flex, flex or HDI PCB technology.

Double Sided Flexible Printed Circuit Board Manufacturers FR-4 Rigid Flex PCB

Double Sided Flexible Printed Circuit  Board Manufacturers FR-4 Rigid Flex PCB
Double Sided Flexible Printed Circuit  Board Manufacturers FR-4 Rigid Flex PCB

Large Image :  Double Sided Flexible Printed Circuit Board Manufacturers FR-4 Rigid Flex PCB

Product Details:

Place of Origin: China
Brand Name: HD-PCB
Certification: UL,ISO9001,TS16949.
Model Number: Flexible printed circuit-4

Payment & Shipping Terms:

Minimum Order Quantity: No MOQ
Price: Negotiation
Packaging Details: Packed in antistatic bag
Detailed Product Description
High Light:

flexible printed circuit boards


flexible pcb board



Double Sided Flexible Printed Circuit  Board Manufacturers FR-4 Rigid Flex PCB


Quick Details

PCB Type:

Flexible Printed Circuit

Layer :

 2 layer

Min .Line Width/Space:


Min. Via Diameter:


Finish Thickness:


Surface Finish:










Shenzhen Hengda Electronics is a leading manufacturer of precision Flexible Printed Circuit (FPC) for customers worldwide. We specialize in quick-turn FPC prototypes to FPC mass productions, provide high quality and cost effective turn key solutions to our customers.
Double Sided Flexible Printed Circuit  Board Manufacturers FR-4 Rigid Flex PCB
This table lists the standard flex circuits materials and material thicknesses that we may have daily available. If  the material or thickness you require is not listed, consult us. We have full specification of each material available for your required.
FPC Materials

Material Function

Material Type


Flexible Insulator


1/2 mil to 5 mil


 *Rolled Annealed(RA)  *Electrodeposited(ED)

1/4 oz(0.009mm)                                 to 10 oz(0.356mm)

Rigid Substrate  (Rigid-Flex)


3 mil to 125 mil


Acrylic Adhesive

1/2 mil to 3 mil

Adhesiveless Material also available 


FR-4                               Polyimide(PI)               Polyester(PET)             Adhesivetape   Steel/Aluminum/Copper     

3mil to 125 mil                                     1/2 mil to 5mil                                     1 mil to 15mil                                        6 mil

Solder Mask

Polyimide(PI)                   Photoimageable Coverlay  Liquid Photoimageable Covercoat

1/2 mil to 5 mil                                     1 mil to 2.5 mil Liquid Typically for surface mount and dense applications

Surface Finish Options


Immersion Tin


Electrolytic Nickel Immersion Gold     Electrolytic Hard Nickel /Gold       Electrolytic Soft Nickel/Gold


Immersion Silver




 Solid  Copper          Crosshatched Copper  Conductive Silver Aluminum 

Required To Limited Electromagnetic and/or Electrostatic

FPC Standard Structure
Double Sided Flexible Printed Circuit  Board Manufacturers FR-4 Rigid Flex PCB 
Technical Capabilities

Layer (Max)

Up to 8 Layers

Board Size (Max)


Outer tolerance

a+/-0.2mm Hand Trim
b+/-0.25mm steel Rule Dies
c+/-0.07mm Punch and Dies
d+/-0.025 Laser Cut





Diameter Tolerance

a.Plating Through Holes+/-0.08mm  b.Non-Plating Through Holes+/-0.05mm 


Drill Position Tolerance 



Width Tolerance




Spacing Tolerance




>=0.04mm+ Hole 




Coverlay to Pad(Min)


Coverlay to Conductor (Min)


Coverlay Width(Min)


Stiffener holes

>=0.25mm+Access hole

FPC Application
Double Sided Flexible Printed Circuit  Board Manufacturers FR-4 Rigid Flex PCB
Testing Procedures
We perform multiple quality assurance procedures before shipping out any PCB board. These include:

  • Visual Inspection
  • Flying probe
  • Bed of nails
  • Impedance control
  • Solder-ability detection
  • Digital metallograghic microscope
  • AOI (Automated Optical Inspection)

Quick turn lead times
For HDI PCB production, we can provid 7 to10 days turn around times. For multilayer PCBs, the fastestturnaround time depends on the number of layers and quantity.
Service Guarantee
We make sure to serve each customer professionally, truthfully and friendly to the best of our ability.   We will gladly re-work your project if your project isn’t 100% satisfactory.
Get a quick quote now
By sending in a bill of material, gerber files including assembly drawing and we will have a quotation back to you within hours. With Shenzhen hengda there is never a hidden cost and our prices are very competitive and reasonable.

Contact Details
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