SPICE AND SPECTRE

Sir,
   I tried  the simulation of  PMOS for its current characteristics in
SPICE,spectre using spice Netlist reader and also in cadence format.
   I compared the simulation results of all. Each simulator results
doesn’t match with one another. Even the spectre results using
Netlist reader and cadence format.

   Why these differences occur?

   How to tune the tool to produce desired results?

    How to find what parameter values of pmos devices are taken for
calculation?


    Help.

With regards,
V G Ramnath
[EMAIL PROTECTED]
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