Questions in APR using Encounter

[makanaky]

Hi,

I am new to APR so please excuse me if my questions seem lame.

Should the netlist output from synthesis have VDD/VSS ?

Also, Do I have to add Power rings in Encounter to be able to place std cells ? As I do place but nothing appears in the layout .

Thanks

 

[artmalik]

the netlist should not have VDD/VSS after synthesis. Encounter has option to provide the VDD/VSS ports during the generation of the standard cell rows. The VDD/VSS are predefined. the POWER port information is from the LEF files which is used by the tools.