Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Voiding under BGA's

Rick Iodice

#34131

Voiding under BGA's | 8 May, 2005

We are continuing to struggle with voids under BGA's. Our problem are not consistent. some CCA's are perfect but others have pin hole sized voids. Does anyone have any feedback on Indium 92j and how it performs for bga's?

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#34149

Voiding under BGA's | 9 May, 2005

We've had similar problems with Indium 6.2 water soluble paste. We reduced our voiding by implementing a longer soak and lower peak temperature.

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#34179

Voiding under BGA's | 10 May, 2005

#34182

Voiding under BGA's | 10 May, 2005

Dr Lee at Indium has written extensively on voiding, Check their site for papers.

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