Have worked with some very large boards with high layer counts up to 52
layers and 17"x21" and there were no problems even considering the number of
area array devices and what was connected to the boards - lots of stuff.
However, I would mention the board thickness and material selections played
a large roll in keeping these MLB's flat as a pancake. Therefore, I might
consider a thicker than normal (.062") construction.

MoonMan

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