[SI-LIST] Re: Signal crossing Split plane
- From: "DAVID CUTHBERT" <telegrapher9@xxxxxxxxx>
- To: sunil_bharadwaz@xxxxxxxxx
- Date: Sun, 18 Nov 2007 10:12:27 -0700
Sunil,
I have been using SONNET LITE for this type of simulation. Being a
free version of SONNET it is limited but can still provide plenty of
insight into problems. The limitations are 2 metal layers plus a "box"
bottom and top and three dielectric layers. For the split plane
analysys this is no problem. The data is frequency domain only, as far
as I know. To view the circuit in the time domain I build a SPICE
model.
Dave Cuthbert
Consultant, SI, EMC
On Nov 18, 2007 2:25 AM, sunil bharadwaz <sunil_bharadwaz@xxxxxxxxx> wrote:
> Hi ,
> I have few signals (@ 80 Mhz & 20 Mhz) crossing the split Power
> plane in the adjacent layer.
>
> The 20 Mhz signal is diffrerential signal.The 80 Mhz is a single
> ended signal.
>
> I want to analyse the affect on Signal Integrity of these two
> signals due to split plane.
>
> I believe one need to define his stack up (Including the
> split) & then extract the layout to simulate.
>
> I'am not too sure if the prevalent SI tools have an option
> of creating split planes .
>
> Pls suggest me a right tool to carry out this.Also , i'am
> looking for a free tool to start with (even if the accuracy
> is slightly limited).
>
> Thanks in Advance!!
>
> Regards
> Sunil.Bh
>
>
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