I use calibre to extract a layout in rcc model, but I found the post netlist has a
node called "0", who can tell me what is it? Because there are another vdd and gnd node.
I want to know how did calibre xrc handle the ground in extraction? There are 2 gnds? one is the metal gnd which had gnd text on it and the other is the sub? I don't know what i think is right or not...