http://www.parkelectro.com/parkelectro/images/CAF%20Article.pdf
This is a reasonable overview and has a graph (Fig 3) indicating the effect of
voltage.
Curt
Curt McNamara, P.E.
Engineering Consultant
North Pole Engineering
www.npe-inc.com
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Jason Pritchard
Sent: Tuesday, January 10, 2017 3:01 PM
To: si-list <si-list@xxxxxxxxxxxxx>
Subject: [SI-LIST] PCB CAF
Hi All,
Does anyone know if CAF is a concern for low voltage signals? When I talk to
the PCB house they point me to test reports of the material that were completed
at 100VDC. I can't find anyone to adequately explain to me if/why voltage
doesn't matter.
Suppose I had two 10 mil vias that were 15 mils apart wall to wall (1 Signal,
1 Ground). The signal via carries a 1.2V signal.
Is this something that I need to worry about?
Thank-you for the great information over the years....
Jason Pritchard
Staff Engineer, Signal Integrity
Work: (508) 983-6483
Email: jpritchard@xxxxxxxxxxxx<mailto:jpritchard@xxxxxxxxxxxx>
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