Hi,
My design has 5 inputs/outputs and some timing critical nets. When I check connectivity violation after place and route the design by using 45nm technology file (lef file), I got the following error:
Database Units: 2000
Design Boundary: (0.0000, 0.0000) (1874.8750, 1850.0700)
Error Limit = 1000; Warning Limit = 50
Check all nets
Net a: no routing.
Net b: no routing.
Net s: no routing.
Net c: no routing.
Net t: no routing.
Begin Summary
5 Problem(s) (ENCVFC-98): Net has no global routing and no special routing.
5 total info(s) created.
However, when I used another technology file, it works fine without any errors. Is this error because of the metal size and thicknesses?
Thank you,
Soha