7 Layers of Flat

As we demonstrate our Shielded Flat Flexible Cable (SFFC) to potential customers, we almost always hear the same questions. How can a cable this flat have have all the advantages and efficiency it is claimed to have? How do all the qualities fit in just 0.173 mm?

We decided to open up the structure in more details to give you a better understanding of our amazing product.

In a search for the optimal structure we have tried several paths. However, throughout the process the main requirements have been same:

  • High signal to noise ratio
  • High power carrying capacity
  • Flexibility
  • High EMI protection

The thickness of our SFFC was not always that important, but there is a definite relationship between flexibility and thickness. When you need flexibility, the cable needs to be thin.

All the 7 layers in our SFFC have a functional purpose. The outer coatings protect the cable from harsh usage environments and conditions. Shielding is used for EMI protection. The insulator controls the distance between signal traces and shielding. The conductor material is chosen in regard to conductivity and flexibility.

Other relevant reasons for the selection of the materials:

  • Manufacturing process needs to be controllable
  • Pricing of the materials needs to be stable
  • Materials need to have predictable life-time
  • SFFC and the materials need to be compatible with existing applications (and connectors)
  • Layer structure has to be lightweight
  • We wish to reduce the amount of plastics used

SFFC reference connector is Hirose FH12 -series. Stay also tuned for our own connector, which will be launched on early 2019.