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Can voids be carried over from original voids in solder ball... - Sep 06, 2007 by Thomas

We have never studied this, but here's what we'd guess. If t... - Sep 17, 2007 by davef

yes they can, we have re-reflowed BGAs for voids and have no... - Sep 19, 2007 by RDR

Thomas

#51682

Void | 6 September, 2007

Can voids be carried over from original voids in solder balls during reflow?

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davef

#51815

Void | 17 September, 2007

We have never studied this, but here's what we'd guess. If there are void in BGA solder balls at inbound: * A proper reflow recipe will eliminate the void. * A poor recipe will allow the void to remain and possibly generate additional void.

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RDR

#51844

Void | 19 September, 2007

yes they can, we have re-reflowed BGAs for voids and have noticed that they are still there.

I believe that DaveF may have good point as well as I would also believe that you could remove them but I have not yet been able to

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