[SI-LIST] Re: PCB Corners - Need help finding research paper

  • From: "DAVID CUTHBERT" <telegrapher9@xxxxxxxxx>
  • To: Chris.McGrath@xxxxxxxx
  • Date: Fri, 8 Aug 2008 12:49:14 -0600

Chris,
I can run a quick SONNET sim for you to show what happens with sharp 90
degree corners and with chamfered corners. The sharp corners add some
capacitance and lower the Z0. For anything that I have done this effect was
almost negligible.

Howard Johnson's book has a section on this, I think.


    Dave Cuthbert

On Fri, Aug 8, 2008 at 12:11 PM, <Chris.McGrath@xxxxxxxx> wrote:

> I used to have a copy of a public paper that debunked the myth that stated
> the evils of using 90 degree corners when routing PCB traces.  I can't
> seem to find it on the web, so I'm hoping that one of you may either have
> a copy of it or can point me to the link.  Feel free to email me directly
> with the attachment since the SI List server will block it.
> Thanks!
> Chris
>
>
> -------------------------------------------------------
> Chris McGrath
> Applications Engineer
> chris.mcgrath@xxxxxxxx
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