[SI-LIST] Re: HSPICE Fieldsolver vs FastHenry
- From: Jory McKinley <jory_mckinley@xxxxxxxxx>
- To: Andy Kuo <andy1390@xxxxxxxxx>, si-list@xxxxxxxxxxxxx
- Date: Wed, 6 Dec 2006 17:58:10 -0800 (PST)
Hello Andy,
I get roughly the same numbers as the HSPICE field solver using a Lossy T-Line
Calculator. You might want to check the the setup with FastHenry.
-Jory
Andy Kuo <andy1390@xxxxxxxxx> wrote: Hi Jory,
Please see attached pdf file for the dimension.
The length is 25.4mm, and the dielectric is simply air. I do not think
dielectric will affect inductance though
Any suggestions and help will be really appreciated,
Thanks in advance,
Andy
On 12/6/06, Jory McKinley < jory_mckinley@xxxxxxxxx> wrote:
>
> Hello Andy,
> Can you post the conductor(h,w,thick)/dielectric properties and dimensions
> as well?
> -Jory
>
>
> Andy Kuo <andy1390@xxxxxxxxx> wrote:
> Hi Jory,
> I have compared both the loop inductance and partial inductance and
> cannot have the values agree.
> Here is the inductance from HSPICE fieldsolver and it is per meter
>
> + Lo = 3.684847e-07 2.023918e-08
> + 2.023918e-08 3.684847e-07
> To compare with FastHenry, I multipled the above to 25.4mm as the
> length of the conductor is 25.4mm and the results are:
> + Lo = 9.3595114e-9 5.1407517e-10
> + 5.1407517e-10 9.3595114e-9
>
> Compare to FastHenry (partial inductance) below, the results are still
> very far away.
> Row 0: 2.99871e-008 1.61083e-008
> Row 1: 1.61083e-008 2.99868e-008
>
>
> Does anyone know why?
>
> Thanks,
> Andy
>
> On 12/6/06, Jory McKinley wrote:
> > Hello Andy,
> > Could be that you are looking at partial inductance versus loop inductance
> which will not agree. Can you post the results?
> > -Jory
> >
> >
> > Andy Kuo wrote:
> >
> > Hi all,
> > I am trying to extract the inductance from both HSPICE fieldsolver and
> from
> > Fasthenry on a simple 2 parallel conductors with a reference ground plane.
> > However, the extracted data from HSPICE fieldsolver and FastHenry doesn't
> > agree.
> >
> > I know the value from HSPICE is per meter value, so I have multiplied the
> > value with the correct length to compare. Still, the results do not
> > correlate at all.
> >
> > Does anyone know the difference between the two?
> >
> > --
> > Andy Kuo
> >
> >
> >
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> --
> Andy Kuo
>
> System on a Chip (SOC) Research Group
> Electrical and Computer Engineering
> University of British Columbia
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--
Andy Kuo
System on a Chip (SOC) Research Group
Electrical and Computer Engineering
University of British Columbia
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