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June 2004

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Subject:
From:
Ted Kong <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 3 Jun 2004 15:21:51 -0700
Content-Type:
text/plain
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text/plain (73 lines)
Hi Steve,

I have reworked a few on the rework station.  The key
is slow even heating.  Otherwise, you will see
bridging on the corner pins.  It is also wise to bake
the part before installing it.  Xilinx BGA 1517 is a
pain to get on. :(

Our manufacturing site did the assembly using reflow
oven, and they didn't seem to have any problem with
it.

Ted
--- Steve Gregory <[log in to unmask]> wrote:
> Afternoon All!
>
> We've quoted some work here to build some boards
> with a 3-per assembly,
> Xilinx Virtex-II, 1152-ball BGA on them.
>
> Have any of you ever placed these BGA's before? Is
> there anything special
> about them to look out for when assembling them?
>
> This will be my first time messing around with a BGA
> with that kind of ball
> count,
> and at over $6,000 each, I sure don't want to screw
> things up...
>
> TIA!!
>
> -Steve Gregory-
>
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