I am working with a FET model from Microsemi. It subckt defines M1 as DMOS with L=1U and W=1U. Qspice returns a warning that L=1e-6 and W=1e-6 is smaller than can is be realistically modeled.
Shall I delete L=1U and W=1U in the script to force to default, or just ignore this warning?
You should be able to ignore the warning. That model is a macromodel done without regard for the physical implementation. It’s of no concern that if you print a FET of those dimensions it won’t work like the simulation since the model, being a macromodel, has no regard for the physical implementation. The model is just trying to present the behavior to you.
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