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Wed, 12 Mar 1997 08:44:18 +0200 (IST) |
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Hi Technets !
We started to work with our new line of electroless Ni-Au finishing. We have
some problems , that seems to be similar to those , that were discussed 3
weeks ago in the net . We observed several phenomenas, that are confusing us :
1 ) Usually , we are adding to working basket brushed , double sided pannels
just to have enough surface , as reguested by loading factor . I happend ,
that one of those pieces got Nickel on one side , while the the second side
was vitrually not plated . Production boars were plated correctly .
2 ) We observed , that some pads on MLB are not plated .We found out , that
they are electrically connected .
3 ) As far as we know , double sided boards are not affected by " selective
non-plating "
We have a filling , that this problem is somehow connected with the network
on the board . We don`t know , how to define the reasons and how to overcome
the problems .
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