[SI-LIST] Re: Skin Effect
- From: "Lambert Simonovich" <bertsimonovich@xxxxxxxxxx>
- To: "'Ken Pinto'" <pinto.ken80@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Sat, 24 Oct 2009 12:26:36 -0400
Ken,
Skin effect is a surface phenomenon where by current flows nearer the outer
perimeter of a conductor. As the frequency increases, the skin depth
decreases thereby increasing its resistance. The 4.6 mil trace at 1.3 mil
thick has more surface area around its perimeter therefore will have less
skin effect loss per unit length than the 3.5 mil trace at 0.6 mil thick.
Regards,
Bert
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Ken Pinto
Sent: October-24-09 2:54 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Skin Effect
Hi,
For the 6Gbps data rate(100Ohm diff impedance), which one of the below will
have less attenuation considering skin effect. 3.5mil trace width -7.8 mil
spacing with 0.5oz copper (or) 4.6mils trace width -6.7 mil spacing with 1oz
copper Thanks, Ken
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