Pressfit works fine with a variety of surface finishes. Do it with 
ENIG. Do it with OSP. Do it with Solder Coated. Do it with Immersion 
Silver.  Just make sure you do the important stuff right.

That is:
    * Drill size: use the precise drill size specified by connector Mfg
    * Cu thickness: have at least the minimum specified annular copper
    * Min hole size: don't let the hole get too small (overplated) or 
you're choke your press or "Z-in" your pins to the board surface
    * Verify if you're serious about it:  retention force and hole 
wall deformation and min remaining hole wall copper  (the old 
Bellcore std is really the benchmark for this testing)


At 03:47 PM 10/22/2010, Robert Kondner wrote:
>Interesting. My concept of press fit was the swaging of soft solder material
>helped form a gas tight connection.
>
>  I am curious to here how this thread comes out.
>
>Bob K.
>
>
>
>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
>Sent: Friday, October 22, 2010 9:46 AM
>To: [log in to unmask]
>Subject: [TN] Press Pin Fits connector
>
>Fellow TechNetters:
>
>    What are the Pros & Cons of using PPF connector with a board surface
>finish of ENIG?   I typically see PPF connector on other than ENIG plating.
>
>Victor,  " X "
>
>
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