I am interested in process analysis for a memory cell. Is there anyone who knows how to perform process analysis in HSPICE? Or what commands are used and what library files I should include to do the same?
thanks for your reply
I am familiar with Hspice and have done some of the analysis on it. actually, I want to introduce the effect of inter-die and inter-die process parameter on circuit. for that, we have to .aguss command in Hspice. but I am confused how to use that command...............
You shall see the monte carlo analysis section of the hspice user guide. hope it helps
Dear sir
I am using PTM model for my analysis but i am unable to perform PVT analysis on it.
which parameter you want to perform the variability analysis?? For temperature and voltage you need to directly set its values in your netlist description. Use the '.temp' command to assign temperature variability. For process variability you attribute a gaussian distribution for the PTM model parameter you desire to analyze.
Hi.
if the .model file does not have a pre-defined .lib for statistical analysis, you may try to include your own statiscal variables in the desired device parameters. For example:
1) modify the .model to include vth variations: +vth0 = 0.46893+'var_vth'
2) in the .sp file generate the random data for vth assuming a given % of variation:
.param var_vth=agauss(0,'0.46893*0.15',3)
Pd. take care of correlation to model properly inter-die and intra-die variations.
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