Hi Inge,
FEA is not the savior when the wrong material properties are input [Watch for
my next column in GSMT&P on this subject].
But you are not giving us much to go on—is there in fact an "airgap between
Quad and board" or is that filled (even partially) with the conformal coating
given the robotic "drowning." An even lifting indicates a pretty uniform
vertical displacement. Remember, this stuff, particularly in a confined space, is
essentially non-compressible.
Werner
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