Doing Define
doping <distribution type> <dopant type> <concentration> <position>
Distribution:uniform, gaussian, erfc(error function),
Dopant type:n.type,p.type
Position:region,x.min,x.max,y.min,y.max,peak,junction…
Eg:
p type doping
doping p.type conc=1e19 x.min=0 x.max=3 junc=1 rat=0.6 gauss
Note: The latter doping can be added into the Previous doping