Amrita Pati
Ansys Employee

Hi Mariah,

i. The diagram looks good to me. But it is always recommended to make sure the doping is properly applied by visualizing the grid. You can first mesh the structure and then visualize the grid and select the parameter N to see if the doping is properly applied. 

ii. It is hard to say if the structure will take longer for reverse bias simulation, there is no rule about it. I believe it would depend upon the structure itself, its I-V characteristics, and the volatges at which it is simulated for both forward and reverse bias.