I would recommend Flexible Circuit Technologies in Minnesota:

http://www.flexiblecircuit.com/

> On Dec 1, 2015, at 2:41 PM, Graham Collins <[log in to unmask]> wrote:
> 
> Good day!
> One of our customers is looking at going to a flex for a new design, and we need to find a (preferably north american) supplier of the bare flex. Anyone have any recommendations?  (if you are recommending yourself please keep it off TechNet and email me direct).
> 
> Per the customer, "it will be 4 layers, with high speed differential traces with impedance matching (5Gbps)".
> 
> --
> regards,
> 
> Graham Collins
> Senior Process Engineer
> Sunsel Systems
> (902) 444-7867
> 
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