Ok, now i have hit a brick wall with our design department and due to limited space on our standard sized boards we are going down the Double-Sided route.
We have a 8 zone (4 Top/Bottom) Quad ZCR Convection (Ok! you can stop laughing!) and i dont have any experience of this type of contruction or thermal mass.
All BGA's are plastic both top and bottom. some BGA's have one directly ont he reverse side.
Any useful direction as in what i need to do to proces this new design as now im concerned over the process, im hoping it is like doing the same with QFP's, but in reality i know its not that simple..
Can anyone help please?