Hi all,

I have a layout and the S-parameters for and inductor which is going to

be used in my circuit.

Here is what I want to do: I want to use this S-parameters data in the

simulation of my circuit. Then I will use the inductor layout mentioned

above in the circuit layout. I will run the LVS and extraction and the

post-layout simulation as well.

How to implement the inductor cell in Cadence so that I can accomplish

those tasks?

I don't know how to make the extractor recorgnize the inductor

structure and assign the correct inductor model (which is based on the

S-parameter) to the extracted view so that I can do the post-layout

simulation correctly.

Thanks,

Frank

Make a view called schematic_simulation where you place your model.

Make a view called schematic where you place a parasitic resistor.

Using the hierarchy editor, you use the first view for simulation, and the

second for LVS.

That is... unless your goal is to learn how to write extraction decks.

On Tue, 24 Jan 2006 19:51:25 +0100, fogh

And you can use the nport component from analogLib for the s-parameters.

For more details, search for "nport app note" on http://www.yqcomputer.com/ -

there are a number of options to control how the s-parameters are handled,

particularly in time domain simulations.

Andrew.

And you can use the nport component from analogLib for the s-parameters.

For more details, search for "nport app note" on http://www.yqcomputer.com/ -

there are a number of options to control how the s-parameters are handled,

particularly in time domain simulations.

Andrew.

If you want to assign the parameters to your model, you can do that with the

global optimiser from analog artist. Set the target to be

difference(your_ind_model the_nport_ind_model) =0

and the variables to be all unknowns of your_ind_model

That is pretty brute force tho. You can probably assign those parameter values

almost orthogonaly, doing stg in between optimise and a fully interactive

parameter extract (where you'd use the ind model to get the S-parameters as a

closed form).

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