Dear all,

I have a  question to ask about BSIM model. Since now I am using a BSIM3.3 0.18-um CMOS model in my work (Cadence, Spectre) and I am wondering about how to figure out the total parasitic capacitances of a transistor. In PSPICE, after I ran a simulation and click on the Probe window to see the output file, I can see a list of small-signal parameters saying that, for example, Cgs = 10 fF (for intrinsic), Cgsov = 20 fF (for overlap capacitance), etc.

However, for BSIM3.3 and for Spectre simulator, I receive a set of small-signal parameters after running a simulation, for example, as shown in the attached picture. For these parameters, for the capacitances, I don't know how to calculate the total intrinsic and extrinsic capacitances since they are separated into several capacitances. Would you mind to explain me a little bit about this and in case that I would like study more, is it possible to recommend me some books or some documents explaining about this ?

Thank you very much,

DYL

Oh, Thank you very much, Andrew. Yes, you were right, I forgot searching in the forum before.

DYL