dipanjan
Member level 2

i started using umc_18_cmos library very recently for a design and am trying to create layout . i have this problem with the contacts....i dont seem to have all contacts ....the contacts definations or models are missing....when i try to generate contacts ....i get error message contacts dont exists.
also i am using m1-pdiff contact for body contact of nmos with ground in psubstrate....
wat i generally do is i create any number of nmos in the psubstrate that is the entire design region and then just put the body contacts at the metal wire denoting ground and it works....however when i am using here the gnd body connection stays as incomplete.
as for my LVS results all seven pins in my schematic are showing mismatch
though hen i am probing from the debug window of LVS the corresponding nets are getting selected in both svhematic and layout.....
my question is if the tool is identifying each contact and the corresponding net properly why is the mismatch?
i am using ME1 for contact material
i have used no labels in the layout
also i am using m1-pdiff contact for body contact of nmos with ground in psubstrate....
wat i generally do is i create any number of nmos in the psubstrate that is the entire design region and then just put the body contacts at the metal wire denoting ground and it works....however when i am using here the gnd body connection stays as incomplete.
as for my LVS results all seven pins in my schematic are showing mismatch
though hen i am probing from the debug window of LVS the corresponding nets are getting selected in both svhematic and layout.....
my question is if the tool is identifying each contact and the corresponding net properly why is the mismatch?
i am using ME1 for contact material
i have used no labels in the layout