Calibre LVS error port not matched

[amiramu10]

I have seen previous solution to this but could not find the correct and exact answer. Kindly see the attached pictures for clarity. I am using umc180nm technology. Ports in schematic and layouts are not matched. I have made all the labels and pins in layout.

 

[amiramu10]

I saw many people asking the same question. But now I have solved the problem. The answer lies in defining the labels. When we define labels for each pin then we have to select material of label carefully. Though it is technology dependent and varies with the fdk/pdk. But the solution is there. So remember it would be something related to "Text" . In my case, UMC180nm, this is solved by choosing ME1-CAD-Text from the many materials available for text label. For other, it may be "ctext". There are many guessed answers in but none of them works. This is the final and practiced answer.

 

[timof]

It's not just "text layer".
It should be text layer that is "attached" to proper metal layer, and designated as port layer.
(In Virtuoso, it's usually called "pin layer").
And this text label (normally) should be placed in the upper cell hierarchy.