Hello Technetters:

I have a .8mm uBGA (88 balls, SDRAM) that currently is only available with
lead-free (SAC) balls.  I'm not ready to go lead-free on this board, so I
would like to get the bga reballed with Sn63.

Looking for recommendation on reballing companies that have a quick
turn-around-time, and competitive pricing.

Also, does anybody have experience / knowledge on the reliability of
putting a Sn ball on a leveled pad on a bga that has a SAC coating? Should
I be concerned?

As always, thanks in advance,


Al Kreplick
Sr. Mfg. Eng.
Teradyne, Inc.
500 Riverpark Drive
Mail Stop NR500 1-1
North Reading, MA 01864
Tel: 978-370-1726
Fax: 734-661-5352
Pager: 888-561-6485


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