Rigid-Flex PCBs

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Rigid-flex is a complicated product that demands a lot of interaction between the PCB provider and the customers. Like other complex products, early discussions between Cirtech Electronics and the designer is necessary to optimize the design for manufacturability and to optimize costs.

Please contact Cirtech Electronics if you need further information or assistance, we are happy to help you.

 

6L Rigid-Flex – materials: Dupont AP9131 + IT180A; surface finish: HASL

 

Rigid-Flex PCBs – Technical specification


Feature Technical specification
Number of layers 4-16 layers
Technology highlights Mixed materials including RF and high speed, standard FR-4, polyimide flex. Adhesiveless or adhesive based polyimide flex constructions, with cover coat or flexible solder mask materials.
Bending performance Based on the specific design, the bend performance can range from a basic 90 °bend to fit to a full dynamic flex with 360° range of motion in the flex tail that will withstand continuous cycles throughout the product life.
Bend features Bend radius controls the flexibility of the flex portion of the board. The thinner the material the lower the bend radius and the more flexible the flex section.
Materials RA copper, THE copper, FR-4, polyimide, adhesive
Copper weights (finished) ½ ounce, 1 ounce, 2 ounce, 3 ounce
Minimum track and gap 0.075mm / 0.075mm
PCB thickness 0.4mm to 3mm
PCB thickness in flex section 0.05mm to 0.8mm
Maxmimum dimensions 457mm to 610mm
Surface finishes available ENIG, OSP Immersion tin, Immersion silver
Minimum mechanical drill 0.20mm