Brian,

   Thanks for sharing your comments.   I would like some sort of official standard are document stated the permissible plating scheme for press fit connectors.   As others have stated that the hole drill size is critical.   I have also notice different designs of press fit pins eyelids and at different depth with regards to the shank length.   I have measured the Ni thickness on several different vendor connector and all with different thickness.   One print di confirm tin over plated with nickel but not thickness criteria.

Victor,

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Chandler
Sent: Friday, June 29, 2012 6:58 AM
To: [log in to unmask]
Subject: Re: [TN] Press Fit Pins on ENIG raw board

I would expect the retention force to be low with the Ni to Ni interface along with the cracking issue previously mentioned.

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