CMOS design parameters

[Global_Hawk]

I am working on current mode circuits. for simulation i need .35 um CMOS AMS technology... As still a beginner in PSPICE, can anyone tell me where to get the required parameters for the above technology?

 

[atripathi]

try MOSIS Integrated Circuit Fabrication Service. you need to get in touch with foundry to get the exact model parameter for that specific process node. PSpice supports BSIM4 models, in case you need that.

 

[Global_Hawk]

well....it's saying something about getting membership from AMS first....is there any other source?
and also...how would i implement those parametres in MOSFETs that I'll be using in my circuit in ORCAD...

 

[atripathi]

What you mean by "implement those parametres in MOSFETs". Generally you get the model parameter from foundry or extract them from actual measurement. Model based on such derived parameter is an input to circuit simulator.

 

[Global_Hawk]

Well, i meant after getting the parameters (Vto, L, W, Rds, Is etc)... how would i let these in the MOSFETs of the Orcad circuit that i am working on...

 

[atripathi]

Some of these parameters would directly map to MOS model parameter, L, W Rds etc maps to this category. For other you need to extract the model parameter for a given process node. There are no direct simple way yo do this. Hope this helps.