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Modeling >> Passive Devices >> Cadence spiral inductor modeler
https://designers-guide.org/forum/YaBB.pl?num=1105560868

Message started by gogomi on Jan 12^th, 2005, 12:14pm

Title: Cadence spiral inductor modeler
Post by gogomi on Jan 12^th, 2005, 12:14pm

Hi,

Have anyone used spiral inductor modeler in cadence?
I don't know why I always get a core dupmed when I
try to generate a model.

I don't know if it's possible if I generate the inductor
model from other tools such as ADS and run it in spectrel.

Thanks!

gogomickey

Title: Re: Cadence spiral inductor modeler
Post by bernd on Nov 15^th, 2005, 1:41am

It is.
I'm not very experienced with ADS but I think ADS
can write out a simplified Spectre Subcircuit of the
Inductor which is nothing else what the
Cadence Inductor Modeller does.

If not at least you should get a simplified Spice Subcircuit
form ADS which you can easily direct draw as a Cadence
Composer Schematic.

Bernd

Title: Re: Cadence spiral inductor modeler
Post by sheldon on Jan 2^nd, 2006, 5:50pm

Gogomickey,

In IC5141 USR3 and MMSIM USR2, spiral inductor modeling
has been updated. The new tool, Virtuoso Passive Component
Modeler provides a more comprehensive solution. It includes
support for PDK Development, Inductor Modeling, Inductor
Synthesis, and Verification.

Best Regards,

Sheldon

Title: Re: Cadence spiral inductor modeler
Post by 337see733 on Jan 16^th, 2006, 6:42pm

There is a excel sheet to extract the model of the spiral inductor posted http://www.circuitsage.com/inductor.html. If you find it interesting, newer version has been developed. Can PM me to get it! ;D

Title: Re: Cadence spiral inductor modeler
Post by loose-electron on Aug 15^th, 2006, 9:37pm

You can also develop a model with a chunk of university freeware: ASITIC

This is from UC Berkley and will get you a first order model.

http://rfic.eecs.berkeley.edu/~niknejad/asitic.html

There are other tools that will get you to a lumped element model which can be dumped back into Spectre -SPice - Eldo (pick one)

That includes: Sonnet, AnSoft and others have tools. Google "electromagnetic model" and you will find the players.

Jerry

Title: Re: Cadence spiral inductor modeler
Post by waver411 on Jul 11^th, 2007, 11:28pm

I need a TSMC 0.18 PDK for ADS,I want to ansys my sprial inductor model!

Title: Re: Cadence spiral inductor modeler
Post by ayowchen on Aug 5^th, 2007, 7:11am

Is it possible to use Cadence VPCM to generate stacked parallel inductors incl. single-end, differential, and balun?
If yes, what about the accuracy? Is that product-proven?

Title: Re: Cadence spiral inductor modeler
Post by andrewli on Aug 6^th, 2007, 10:22am

Yes, it is possible. Use consecutive metall layers as winding, and the metal layer next to those winding layer as bridge, you can get stacked parallel inductors.

Regarding accuracy, please refer to the following press release:

http://www.cdnusers.org/InterviewwithEpochMicroelectronics/tabid/398/Default.aspx

Hope it helps

Andrew

ayowchen wrote on Aug 5^th, 2007, 7:11am:

Is it possible to use Cadence VPCM to generate stacked parallel inductors incl. single-end, differential, and balun?
If yes, what about the accuracy? Is that product-proven?