Victor,

Search the fine Technet archives.  Back in time, Norm Einarson talked about
studies he did in assessing various plating thickness.

Dave Fish

----- Original Message -----
From: "Victor Hernandez" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, August 01, 2002 2:21 PM
Subject: [TN] Insertion Cycles


> Fellow TechNetters,
>    I am desperately search for documents/Publications/Studies on number of
> insertion mating contacts will withstand.
> Hard gold, Au/Ni/Cu, on PCB fingers is a robust finished.   It can with
> stand hundreds of insertion cycles.   However,
> FLASH, Soft Gold, will not be that reliable.   Wow about tin lead
surfaces.
> I know that the thickness/Purity  of the
> surface plating plays a great part.   I really need HELP from the
DINOSAURS
> out there.   I have reviewed IPC-2221.
>
> Victor G. Hernandez
> Component/Material Failure Analysis Eng.
> PS4-1, Rm. 132
> Ofc:     512-725-3471
> Pgr:     512-907-0005
>
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