Thank you Yuryl , I'll go through them .
On Wed, Dec 18, 2019, 8:45 PM Yuriy Shlepnev <shlepnev@xxxxxxxxxxxxx> wrote:
Hi Maruthi,
The best way to figure it out is with a numerical experiment.
To start with, pick up a realistic roughness model that correlates with the
measurements - a number of such models for different type of copper
treatments is available in our app notes at
https://www.simberian.com/AppNotes.php Build a model of your link and see
the impact by turning the roughness on and off.
The impact of different signal degradation factors, including roughness,
for
different data rates was a subject of the recent SIJ webinar - see #9 at
https://www.simberian.com/Webinars.php
Best regards,
Yuriy
Yuriy Shlepnev, Ph.D.
President, Simberian Inc.
www.simberian.com
Simbeor - Accurate, Productive and Cost-Effective Electromagnetic Signal
Integrity Software to Design Predictable Interconnects!
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On
Behalf Of MARUTHI PRASANNA C
Sent: Wednesday, December 18, 2019 2:10 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Surface roughness of copper
Hi everyone
What's the minimum bitrate after which I should start worrying about the
surface roughness parameters of the copper used in PCB ?
Does the amount of signal energy in the first harmonics , second harmonics
have any impact on this ?
I appreciate answers on this , thanks in advance .
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