BSIM3 and technology related question

[kamesh419]

Hi all,

I would be working on designing circuits at sub-threshold logic level. Before I start designing and simulating small little circuits I have to know a couple of things.

I understand that BSIM3 models are modelled quite well in sub-threshold region. But I am not sure if there are other models which are good compared to that. The questions that I have are related to this basically.

1) Are there models which I could possibly use which are better than BSIM3? If yes, what are they?

2) How do I know that the models that I am using currently belong to BSIM3 or something else? How do I change those models in Cadence?

3) How do I get parameters like gamma, k, mu, Vth etc for a particular technology. Every one says that it is in the technology file. But my question is where is that technology file?

Thanks and Regards,

 

[smoked]

EKV model provides smooth transition between subthreshold and inversion model. You can also check it if you want to see the difference.

 

[kamesh419]

Thanks a lot for the reply smoked. I understand that I could also use them too.

 

[EKV_web]

visit the EKV web site: https://legwww.epfl.ch/ekv