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'[EE:] BGA Removal with temperature controlled heat'
2004\10\28@161552 by Roberts II, Charles K.

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Hello all

Has anyone on here used a hand held temperature controlled heat gun and
a suction cup part lifter to remove a BGA? I have seen it done once
before, is this a good technique?

And are there any other techniques or methods to economically remove
BGA's? Preferably still having the ability to reball the BGA and
definitely without damaging the PCB.


Chuck



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2004\10\28@164846 by Marcel Duchamp

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At 01:15 PM 10/28/04, you wrote:

>And are there any other techniques or methods to economically remove
>BGA's? Preferably still having the ability to reball the BGA and
>definitely without damaging the PCB.
>
>Chuck

My company used a toaster oven for SMD assembly and one board had a small
BGA.  Sometimes the soldering went awry and the part needed to be removed.

We just put it back into the oven and when it got hot enough, it moved
slightly.  Then a pair of tweezers could be used to remove it.  Of course,
the board had been heated once to apply the parts, a second time to remove
the BGA and then a third time to try resoldering the BGA so that is a
downside...

For small parts like the one we had, another possibility is using a hot air
tool (like a Hakko, etc.) to heat the part until it can be removed.

Once you have decided that a board is scrap, don't throw it away.  First,
use it for soldering/desoldering practice.
MD

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