input.scs: +8 is an instance of an undefined model dnwpw.

is an instance of an undefined model

when i tried to make post-simulation using specte simulator with the extracted view (produced in DIVA), i got some errors in the spectre.out :
Error found by spectre in `stage1_rfpdk_sym_fordiva_extracted', during circuit
read-in.
input.scs: +8 is an instance of an undefined model dnwpw.
input.scs: +7 is an instance of an undefined model dnwpw.
input.scs: +6 is an instance of an undefined model dnwpw.
input.scs: +5 is an instance of an undefined model dnwpw.
input.scs: +4 is an instance of an undefined model dnwpw.
input.scs: +3 is an instance of an undefined model dnwpw.
input.scs: +2 is an instance of an undefined model dnwpw.

at the same time, here is the relative message in the input.scs :
\+8 (IN VDD) dnwpw area=5.02139e-10 pj=0.00010794 m=1
\+7 (GND VDD) dnwpw area=9.01648e-11 pj=3.902e-05 m=1
\+6 (GND VDD) dnwpw area=5.6673e-10 pj=0.00025188 m=1
\+5 (GND VDD) dnwpw area=2.5659e-10 pj=0.00011404 m=1
\+4 (GND VDD) dnwpw area=1e-20 pj=1e-20 m=1
\+3 (GND VDD) dnwpw area=1e-20 pj=1e-20 m=1
\+2 (GND _7) dnwpw area=1e-20 pj=1e-20 m=1

what does dnwpw mean?
how to solve this problem?

thank you.

an instance of an undefined model

dnwpw is the model name, and you have to provide model info for spectre. You can do it in command line argument or as a setting in ADE.

l0 is an instance of an undefined model

Johnson said:

dnwpw is the model name, and you have to provide model info for spectre. You can do it in command line argument or as a setting in ADE.

Click to expand...

model of what ???

instance of an undefined model

Diva is recognized diodes in your layout, in order to simulate it with spectre you have to provide this model. You can set path of this models in setup menu of ADE.
Are you using a special PDK? RF PDK?

an instance of an undefined model pch3

Johnson said:

Diva is recognized diodes in your layout, in order to simulate it with spectre you have to provide this model. You can set path of this models in setup menu of ADE.
Are you using a special PDK? RF PDK?

Click to expand...

thanks for your reply, Johnson.
i'm using chrt 0.18 rf pdk.
and i can find the model of dnwpw_1p8 in the pdk models. but there is no model for dnwpw.
how could this dnwpw be produced ,since there's no model for it ?

is an instance of an undefined model nfet

The problem may be fixed by renaming that models!

spectre is an instance of an undefined model

Johnson said:

The problem may be fixed by renaming that models!

Click to expand...

hehe,,,thanks .it works.