SMD analog IC test fixture design

[smmiri1360]

Hi
I am working on a test fixture for an analog IC (low power, high frequency). What I have worked so far was a fixture with small pins on each line but I just saw another structure using a kind of fabric including lots of wires inside. They put this fabric between the part and the test board. It seems really efficient. Does anybody know what this fabric is and where can I order it? Here is the picture:

Thanks

 

[dick_freebird]

You may be talking about a "membrane probe" or its packaged
part equivalent. Very popular for RF because the membrane
can be designed for 50 ohms unlike a needle probe card.

 

[smmiri1360]

I googled Membrane probe and it seems what I am looking for is something like this.
Do you have any idea where can I order this material?
Thanks

 

[smmiri1360]

OK, I found it.
if somebody needs such a product, here is the link:
**broken link removed**