Hello! I'm new in layout design. I have a one problem. In the Fig.1 be see a post-layout simulation about my circuit. How we see, the ground not is in V=0V, is a random number. In the pictures, I put a original ground (gnd) (out of layout) and Vdd. In the other picture, I show a pull-down net about my circuit CMOS. In this print screen we will see any connections with ground, marked in yellow color.
Yes, is there. Is the diffusion most right of the layout. That picture is the result of the parasitics extraction, for this fact, the names and layers are similar.