Get MOSFET parameters for given mode

Hi all.

Is there a way to get all MOSFET parameters from model like in picture below for "MN0" as a list of strings?

Best regards,

Dragan

Dragan,

Please read the forum guidelines - don't post the same question twice in different forums. Just because you didn't get an answer doesn't make it more likely to get one if you ask again.

I did some checking initially, it wasn't entirely clear where you were coming from.

Perhaps you would use something like:

pcreMatchList("^MN0:" outputs(?result "tran" ?map nil))

I was checking because there is some categorisation of parameters in the dcOpInfo database, but if operating point parameters are saved into the transient result they are just signals - there's no grouping for related parameters for a particular model (because they are all waveforms if saved into a transient database). So matching by name is the only way of doing it, I believe.

Andrew

I apologise for posting twice and asking unclear question.

I asked question second time because I was not sure that I posted it correctly first time.

I could not find it later when I searched.

As for question clarification, I need to list parameters before simulation starts for given MOSFET model.

Best regards,

Dragan

Hi Dragan,

The list of available parameters is shown in the Operating Point Parameters and Output Parameters section of "spectre -h bsim4" (or whichever model type it us - it will be different for each device model type). If this is about saving all operating point parameters, you would use "oppoint" in the save (e.g. save M1:oppoint) - you can also use M1:all to save everything). Maybe I have misunderstand why you need to know the list of parameters before the simulation starts.

Andrew

I am setting up a form:

I need to fill "Device parameters" drop down list based on Device's model.

I have prepared a function that returns device model for selected device (/I0/I1/MP0).

So far I retyped list of parameters from picture I sent earlier.

But I am not sure for other models, than in my case "nmos4", device parameters remain the same.

Anyway it would be better to remove hardcoded list with proper function that lists parameters.

Dragan

Also "spectre -h" is not functioning in my Cadence environment and I have no way to fix this.

Sorry for delayed response.

Dragan

This seems to be mostly a reimplementation of the existing ADE functionality to save operating points (in Explorer, Outputs->To be saved->Select OP Parameters for example) but with the addition of time window support. The ADE implementation has the ability to find the operating point parameters for a device, and does so by running a short DC simulation to find the operating point parameters for the devices (it has a "get from simulation"). That's really the only way of finding it out, and that functionality is not available as an API that you can re-use.

There is control on the ADE Save Options form which allows you to define time windows for signals - but it's not joined up with the save oppoint - and strangely I've found no request for that (it would seem a useful option since Spectre supports it).

Andrew