r.mirtaji
Junior Member level 3
The length and width range specified for the transistor is as follows:
ADE/resualt/print/model parameter :
I designed a simple circuit with a common source transistor And I put the length and width values out of range as follows
The simulator did not give any error message and the circuit was biased correctly.
Is not the length and width range of the transistor within the allowable range?!
I did the test again with the following value:
The simulator gave the following error message:
Why the simulator indicates the allowable length and width range as above Wmax=900um Wmin=150nm Lmax=20um Lmin=130nm
What is the difference between the error value shown in the simulator and the model parameter at ADE/resualt/print/model parameter ?
ADE/resualt/print/model parameter :
Wmax=10u Wmin=1.2u Lmax=350nm Lmin=130nm
I designed a simple circuit with a common source transistor And I put the length and width values out of range as follows
W=1u L=.5u
The simulator did not give any error message and the circuit was biased correctly.
Is not the length and width range of the transistor within the allowable range?!
I did the test again with the following value:
W=1m l=.5u
The simulator gave the following error message:
Error found by spectre during initial setup.
ERROR (CMI-2440): "input.scs" 15: M1: The length, width, or area of the instance does not fit the given lmax-lmin, wmax-wmin,
or areamax-areamin range for any model in the `nch' group. The channel width is 1.000000e-03 and length is 1.300000e-07
Why the simulator indicates the allowable length and width range as above Wmax=900um Wmin=150nm Lmax=20um Lmin=130nm
What is the difference between the error value shown in the simulator and the model parameter at ADE/resualt/print/model parameter ?
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