[SI-LIST] Re: Looking for good source of information regarding Via tuning
- From: David Banas <david.banas@xxxxxxxxxx>
- To: "steve weir" <weirsi@xxxxxxxxxx>, "Denomme, Paul S." <Paul.Denomme@xxxxxxxxxxxxxx>
- Date: Wed, 2 Jul 2008 14:04:37 -0700
I'm not sure about via tuning, but I was able to use this free tool:
http://lc.cray.com/
to optimize a micro-strip to SMA launch.
It's not open source. So, if you want to make changes, you're out of
luck. However, as a free alternative, it's probably worth a look.
Binaries are available for several Unix variants, including Linux on
x86.
No Windows port, though.
-db
=
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]
> On Behalf Of steve weir
> Sent: Wednesday, July 02, 2008 1:48 PM
> To: Denomme, Paul S.
> Cc: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: Looking for good source of information
regarding
> Via tuning
> =
> Paul, this is the sort of thing that a good 3D solver with a properly
> trained engineer are really good at. Optimizing vias and launches
takes
> considerable skill even with the expensive software. I am not
familiar
> with any low cost tools that can substitute. You might think about
> contracting for a library.
> =
> Steve.
> Denomme, Paul S. wrote:
> > Hi All,
> >
> >
> > I have a customer that is looking for assistance in
> > providing Via tuning. Basically they are looking to minimize the
impact
> > their via's have on their high speed signals. I am familiar with
the
> > various techniques to minimize the impact a via has on the signal
> > integrity ( ie minimize pad size, maximize anti pad, remove NFP's,
> > backdrilling, etc) but is their any good source of information on
how to
> > tune a via to a particular impedance? What about software? I'm
familiar
> > with the 3D field solvers, but is their any reasonably priced
software
> > available that will support this type of work? Any assistance on
this
> > issue would be greatly appreciated.
> >
> >
> >
> > Thank you
> >
> >
> >
> > Paul Denomme
> >
> > Viasystems
> >
> >
> >
> >
> >
> >
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