Hello,

no problem to use flex material for high speed applications.
You have to choose a flex material without adhesive, e.g. DuPont Pyralux AP
or similar.

This link may be helpful:
http://www2.dupont.com/Pyralux/en_US/uses_apps/computer/cs_comp_flex_b.html

Best regards
Simon


Charming Chan wrote:
> Hello All,
> 
> 
> 
> Now I'm working on a pcb design project, two rigid pcb boards
> are connected with high speed connector. I have an idea to
> make the two pcb boards connected with flex instead of the
> expensive high speed connector. So, my concern is, the flex
> part?is capable to?transmit high speed more than 6GHz? Thank you all.
> 
> 
> 
> Best Regards
> 
> Charming Chan
>

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