[SI-LIST] Re: Disadvantages of wider traces
- From: istvan novak <Istvan.Novak@xxxxxxx>
- To: ldieguez@xxxxxxxxxx
- Date: Thu, 19 Apr 2007 22:27:03 -0400
Leonard,
Just to make sure that we are on the same page: it is true that wider
traces will be
limited by dielectric losses rather than conductive losses, but the
attenuation of
a matched trace coming from its dielectric losses is independent of the
trace
width.
Regards,
Istvan
Leonard Dieguez wrote:
>It depends on the operational bit rates of the signals on that trace.
>Wider traces do give lower skin losses, but dielectric losses will
>increase and will eventually dominate at a given frequency for a given
>material and trace width. Therefore at a bit rate (Gbps) adding trace
>width will actually increase losses. =20
>
>I also agree with Istvan with his comments on routing density and
>crosstalk. With today's high pin count devices that aspect cannot be
>ignored.=20
>
>
>Leonard Dieguez
>Cat herder
>
>
>Video: Crazy cat women!
>http://www.youtube.com/watch?v=3DafpTHe91KFc
>=20
>
>
>
>-----Original Message-----
>From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
>On Behalf Of Babid A
>Sent: Wednesday, April 18, 2007 8:28 PM
>To: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Disadvantages of wider traces
>
>Hello,
>Assuming that there is a chance for routing traces as wide as possible,
>what are the disadvantages of having wider traces on the boards (>12mil)
>in respect to noise, jitter etc?
>
>-Thanks,
>
>
>
>
> =20
>---------------------------------
>Ahhh...imagining that irresistible "new car" smell?
> Check outnew cars at Yahoo! Autos.
>
>
>
>
>
>
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