I need a true definition for a compact model.  I have read a couple of papers by Geoffrey Coram, and it looks like a compact model must:

1) have electrical inputs and outputs,

2) use equations written to ensure only real, physical behavior (i.e. continuous  derivitives), and

3) be relatively computationally efficient  (compared to what..?)

So the above could probably describe "other" sorts of models - what transforms a Verilog-A/MS model into a "compact model" ??

This definition is needed for my Thesis presentation and I know I will be asked for a clear, defining difference between this term "compact model" and "other" behavioral models....  please help!

Thank you,
linda

Thanks Mr. Coram - I appreciate response AND the fast reply!

Linda