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SGOSW7
Beginner
495 Views

Facing obsolescence problem in FPGA based PCBs. Is it wise to mount FPGA on piggy backed board instead of assembling the FPGA directly on PCB?

 
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5 Replies
AnandRaj_S_Intel
Employee
71 Views

Hi Goswami,

 

Yes, we can use piggyback boards or a socket for FPGA. In ATE testing we use sockets on load board.

 

You can contact Yamaichi for sockets or other vendors.

Look below links which are useful

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an080.pdf

https://www.intel.com/content/www/us/en/programmable/support/support-resources/operation-and-testing...

 

Regards

Anand

SGOSW7
Beginner
71 Views

Thanks for the response. Do you mean irrespective of speed such connectivity not an issue? I studied some literature where they are advising to be very carefull in FPGA board design about impact of discontinuities arises out of such connectivities mostly on reflection and jitter. Is any specific test to be done to qualify such deisgn on socket or piggybacked connectivity?

AnandRaj_S_Intel
Employee
71 Views

​Hi Goswami,

 

I am talking about connectivity only. Regarding speed, Socket & piggyback board design Should meets timing requirements.

 

Is any specific test to be done to qualify such design on socket or piggybacked connectivity?

Let me check and come back

 

Regards

Anand

AnandRaj_S_Intel
Employee
71 Views

Hi Goswami,

 

Sorry for the delay,

Is any specific test to be done to qualify such design on socket or piggybacked connectivity?

 

There is no official socket design/piggyback connectivity test specification.

You can discuss with the socket vendor directly or board design team for more input.

 

Intel FPGA can offers is the FPGA packaging mechanical spec in below link.

        https://www.intel.com/content/www/us/en/programmable/support/literature/lit-index/lit-pkg.html

 

Regards

Anand

SGOSW7
Beginner
71 Views

Hi Anand, It is great to receive your response. I could understand that while doing such design care is needed. I will go through the link materials and take help of your forum if required. Many many thanks Goswami On 11-06-2019 14:29, Intel Forums wrote: ** Radiation exposure to public from NPP is negligible ** Disclaimer
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