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

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BGA - down the middle?

David Spilker


BGA - down the middle? | 13 December, 1999

In our DFM guidelines for PWB layout we have discouraged placing BGAs in the longitudinal center of a PWB. We believed the increase stress through reflow and wave was not good for BGAs - probably read it or reasoned it. Now, this position is being challenged and I am looking for data to confirm or deny this position. Anyone out there seen a good article on this issue?

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Re: BGA - down the middle? | 20 December, 1999

David: We build boards with BGAs wall to wall on both sides. May the issue you're concerned about is the thermal characteristics of your fabricated board. Good luck. Dave F

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