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February 1997

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ASSY: SOLDER ALLOYS AND BGAs
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From [log in to unmask] Tue Feb 18 09:
32:29 1997
From:
Jim Marsico 516-595-5879 <[log in to unmask]>
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Dear Technet:

A prominent component manufacturer uses a Pb46 Sn46 Bi8 alloy for the balls on 
BGAs.  Can anyone think of any problems soldering these with Sn63 solder paste? 
Any metallurgical or reliability issues?

Thanks

Jim Marsico
(516) 595-5879
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