[SI-LIST] Re: Via Inductance Formula Assumptions
- From: "Mike Degerstrom" <degers@xxxxxxxxxxxxxxxxxxxx>
- To: mmoeller@xxxxxxxxxxxxxxx,"Si-List (E-mail)" <si-list@xxxxxxxxxxxxx>
- Date: Wed, 27 Aug 2003 16:50:25 -0500
Merrick,
This topic was covered quite extensively - I think about 2 years ago. I
believe that Dr. Johnson also replied and cleared things up quite well.
Possibly I'm thinking of via capacitance instead of inductance - but perhaps
you should visit the archives.
Mike
On Wed August 27 2003 3:47 pm, Moeller, Merrick wrote:
> What assumptions are made with Dr. Howard Johnson's via
> inductance approximaiton:
> L=5.08h (ln(4h/d) + 1)
>
> Where is the return path located? Does this apply to an
> an array of vias?
>
> Merrick M. Moeller
>
>
>
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--
Mike Degerstrom email: degers@xxxxxxxxxxxxxxxxxxxx
Advanced Signal Integrity Design, LLC http://www.advancedsidesign.com
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