What should be paid attention to in the bending process of FPC?

Flexibility is the most obvious advantage for flex PCB, but we should maintain a degree during use, not just bend casually, so what should we pay attention to when bending?

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  1. Although the FPC can be bent, if it is bent at 180°, this may cause damage to the copper traces, and it lead to open or short circuits.
  • Most of the ink-type protective layer is not resistant to bend, such as text/silk screen, marking, solder mask, etc. It is strictly prohibited to have more than 90° bending action in the assembly process.
  • The corners of the FPC outline, which are prone to tearing during the assembly process, reminding users to pay attention to it.
  • The exposed part of the FPC is subjected to surface plating treatment, such as gold/gold plating, etc., the focus is on preventing oxidation. This area is not suitable for bending.
  • Although there is a stiffener design in the golden finger plug-in area, it is still not suitable for bending in this area. Special attention should be paid to the assembly process.
  • Do not bend directly on the via area of FPC.

If you have any design question about bending area, please feel free to contact us at sales@bestfpc.com. We will share more details about increasing the bending times soon.

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