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I want to setup + or - n*sigma only in monte carlo hspice.
Simply the step size between -3 & +3 , so only these 2 analyses are run. Of course you could use a POI list instead.Your first sentence: variation of -3 to +3 sigma. But what does mean "6"?
Not really :-(after my Monte Carlo simulation, the HSPICE simulator does not show the mean and sigma found. As shown in this picture described in the manual. Do you know how to get this "summary"?
What do you mean with ".Print set"?
I think HSPICE doesn't find any sigma-dependent parameter in your netlist (or any .INCLUDEd file): sigma is not an intrinsic parameter of HSPICE; its effect has to be defined by a parameter definition, which changes some relevant model parameter value(s), like, e.g. Vt_mos(sigma)=AVt_mos/sqrt(WL)*sqrt2/2*sigma... the parameter sigma variant,but values td_in_to_out1 don't change.
I don't know, how to parameter sigma affect to model ?