[SI-LIST] Re: AW: via behavior -3D solver
- From: Balaji G <bala89si@xxxxxxxxx>
- To: Gert.Havermann@xxxxxxxxxxx
- Date: Mon, 18 Mar 2013 14:47:49 +0530
Hi Gert,
I am sorry as I don't get why low speed return current flow in the via is
not critical if via area below 1/4 wavelength. If you don't mind can you
please provide the clarification on this wavelength and via area stuff?
Regards,
Bala
On Fri, Mar 15, 2013 at 5:12 PM, Havermann, Gert <Gert.Havermann@xxxxxxxxxxx
> wrote:
> Hi Balamanikandan,
>
> the 3D solver is more accurate because it captures all the surrounding
> materials that influence the fields (i.e. GND vias, traces planes,
> laminates). This way the return currents are modeled correctly, and that's
> something a 2D or 2,5D solver can't do. For lower speeds these effects
> aren't critical as the return current flow in the via area is well below
> 1/4 wavelength.
>
> BR
> Gert
>
>
>
>
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> -----Ursprüngliche Nachricht-----
> Von: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
> Im Auftrag von Balamanikandan K
> Gesendet: Freitag, 15. März 2013 11:45
> An: si-list@xxxxxxxxxxxxx
> Betreff: [SI-LIST] via behavior -3D solver
>
> Hi
> At higher speeds, it is better to model the via behavior very accurately
> using 3D solver.
>
> But I could not understand in what way the 3D solver improves the
> accuracy. Please explain.
> --
> Best Regards,
> Balamanikandan.K
>
>
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