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https://designers-guide.org/forum/YaBB.pl Modeling >> Semiconductor Devices >> Spectre Model for High Voltage MOS https://designers-guide.org/forum/YaBB.pl?num=1193758293 Message started by k-one on Oct 30th, 2007, 8:31am |
Title: Spectre Model for High Voltage MOS Post by k-one on Oct 30th, 2007, 8:31am all, I need a spectre model for our HV Mos.... what is the industry standard for MOS high voltage model- MM20? EKV-HV? thanks |
Title: Re: Spectre Model for High Voltage MOS Post by Geoffrey_Coram on Oct 30th, 2007, 11:34am k-one wrote on Oct 30th, 2007, 8:31am:
The Compact Model Council is expected to vote on a standard by the end of the year. MM20 is already in the public domain; HV-EKV is another candidate (and I believe its Verilog-A code is available); HiSIM-LDMOS is the third candidate (from Hiroshima University). HiSIM-LDMOS looks good from the presentations by the Japanese CMC members, but the code is held under non-disclosure agreement (NDA) until/unless it is accepted as the standard. I'll also mention that spectre has a built-in model (spectre -help hvmos). |
Title: Re: Spectre Model for High Voltage MOS Post by k-one on Oct 31st, 2007, 3:02am Geoffrey_Coram wrote on Oct 30th, 2007, 11:34am:
Hi Geoffrey, Thanks a lot for the info. I did spectre -h and notice that spectre support MM20 through level mos2002. But I didn't see any ekv or hisim High Voltage model listed. Only normal ekv and hisim listed. Is there any other name to represent these 2 high voltage models? What is the performance of the built in model- hvmos? Also, I noticed there is another one named ldmos model in the list but I am not sure the performance of this model.... do you have any ideas? Thanks |
Title: Re: Spectre Model for High Voltage MOS Post by Geoffrey_Coram on Oct 31st, 2007, 6:51am k-one wrote on Oct 31st, 2007, 3:02am:
I've never used the built-in ldmos nor hvmos. I also don't believe the HV-EKV or HiSIM-LDMOS models are installed in Spectre, but you might find HV-EKV in Verilog-A that you could run in Spectre. A "release candidate" (SC1) of HiSIM-LDMOS is in the latest (2007.09) HSpice. |
Title: Re: Spectre Model for High Voltage MOS Post by k-one on Oct 31st, 2007, 5:45pm Geoffrey_Coram wrote on Oct 31st, 2007, 6:51am:
Hi Geoffrey, Thanks. Looks like MM20 is the best candidate for my HV spectre model. I think Built in model not really good as it is not one of the CMC candidate for HV model. I have another question. Can this MM20 run with hspice? Currently, we are using level 66 for our hspice HV model. That means I need to extract 2 models for my HV process. Level 66 doesn't support spectre. Thanks |
Title: Re: Spectre Model for High Voltage MOS Post by Geoffrey_Coram on Nov 1st, 2007, 4:28am k-one wrote on Oct 31st, 2007, 5:45pm:
Have you tried using level=66 parameters with Spectre's hvmos? I may be completely misremembering something, but I thought that perhaps Cadence had licensed it from Synopsys. MM20 is available in Verilog-A, and this will run in HSpice (assuming you have the VA compiler option with your copy of HSpice). |
Title: Re: Spectre Model for High Voltage MOS Post by k-one on Nov 1st, 2007, 5:57am Geoffrey_Coram wrote on Nov 1st, 2007, 4:28am:
you mean copy parameters from my hspice level 66 into hvmos model and run the simulation... I never try it. But what I know, level 66 is a Synopsys proprietary. Only recently, they allowed ICCAP as a extractor. Before this we need to use Synopsys extractor- Aurora. Can we directly run MM20 in hspice. Sorry, I don't familiar with verilog-A thanks |
Title: Re: Spectre Model for High Voltage MOS Post by Geoffrey_Coram on Nov 1st, 2007, 8:21am k-one wrote on Nov 1st, 2007, 5:57am:
There's not a level for mm20, but you do something like: .hdl "mos2002t.va" x1 d g s b mos2002t vfb=-0.45 vfbd=-0.05 (This syntax is for the Verilog-A in an enhanced Spice3f5, but the syntax in HSpice is *very* similar, and I think they also support .model cards for VA.) Verilog-A is a behavioral modeling language; you write the equations of the device in the language, and the simulator invokes a compiler and dynamically links the resulting object file. |
Title: Re: Spectre Model for High Voltage MOS Post by k-one on Nov 6th, 2007, 4:03am Geoffrey_Coram wrote on Nov 1st, 2007, 8:21am:
Thanks. We have decided to use MM20 from NXP as our high voltage model for spectre. Thanks a lot for your help. Thanks |
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