I am trying to place a big macro in encounter. The macro has its first and last power rail of type vdd!.
By default it is placed starting from the gnd! special route rail. So I have a short as shown at the attached picture.
think that this problem origins from the abstract tool, where I have
the "cell has no power terminals" message (abs-1086, abs-1087).
I manually add at the abstract design a vdd! pin of layer purpose metal1
net, and export the lef of the macro again (the vdd! pin is included)
the problem remains.
Can you please help me overcome this situation?
Just to close this post,
I had the vdd-gnd short on the big macro because I did not create pins for the vdd and gnd of the macro.Just used label names of metal1 dg for these rails , that was ok for assura but lead to a short at encounter.