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Rigid-Flex PCBs

Pure PCB’s Rigid-Flex or Flex-Rigid capability is a cornerstone of our hybrid PCB capabilities. Our expertise provides our customers with reliable, high-quality solutions in eliminating the need for connectors and cables within any product. Learn more about our rigid flex capabilities.


At Pure PCB, our Rigid-flex circuit board solutions range from simple boards and board interconnects, through to the most complex of high-speed applications. With layers from 1-22 and an available board thickness up to 20mm, our selection of base materials are standard and high TG FR4 & Polymide. Our Rigid-flex PCB products have a minimum panel size of 600 x 450mm.


Rigid-Flex PCBs available from Pure PCB

Here at Pure PCB, we have a range of surface finishes available for our flexible circuit boards. Choose the finish that best suits your product

  • ENIG
    •    Lead free HASL
    •    ENEPIG
    •    ASIG
    •    ISIG
    •    Immersion Tin
    •    Immersion Silver.

The applicable quality standard of our rigid-flex PCBs is PC 6013 Class 3. We also have a selection of available stiffener materials including:

  • Thermal adhesive
    •    Standard FR4
    •    Polymide
    •    Aluminium 


Here at Pure, we are keen to help and support our customers in every way that we can – and we’re proud to be associated with you and help you with your PCB needs. The early involvement of Pure PCB in a collaborative dialogue around your Rigid-Flex PCB design rigid flex printed circuit board needs is essential. By talking to us early on, we are able to provide the most effective and optimised interconnect solution. 

How are Rigid-Flex PCBs made?

Rigid flex circuit boards use a combination of both rigid and flexible substrates laminated together to form a unified structure. This structure offers the benefits of a  flexible printed circuit board while maintaining the features of a rigid board. Rigid flex circuits are not the same as similar rigidised flex constructions – these are flex circuits with electronic components supported by locally attached stiffeners.

Benefits of Rigid-Flex Circuit Boards

Rigid flex PCBs take on the features of a normal PCB while retaining the benefits of a flexible board. These include:

  • Dynamism - investing in rigid flex PCBs leads to unlimited packaging geometry while retaining precision density and repeatability of printed circuits. Minimal geometry changes reduce the opportunity for impedance discontinuities.
  • Cost Effective – investing in a rigid-flex circuit board can lead to a reduction in total PCB costs.
  • Reduced weight – rigid flex PCBs remove the need for connectors and cables between the individual rigid parts – this results in a reduced board size and a lighter system.

We recently helped with development process of an access control customers flex-rigid design which allowed our customers to go on and manufacture an award winning product. For more information on our Rigid-Flex or Flex-Rigid printed circuit boards, get in touch with a member of our expert team.