Technetters,

     We are trying to use BGA on both sides of a PWB. The BGA is a 50 mil
pitch 27 mm x27 mm or 35 mm X 35 mm.
We have some experience with BGA , but we have never used it with double
reflow. Is there anyone that has this experience?. The only concern is the
conditions of the BGA from first pass when doing the second reflow. Any
ideas?,  has anyone deal with this issue?


     Any comments, suggestions will be appreciated



Jorge A Rodriguez
Conexant Systems Inc

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