Yes, this is the train of thought and the argument for wider traces. But is it necessary for all nets?
 
 
Allen Maddox C.I.D.
Sr. PC Board Designer
GAI-Tronics, Corp
610-796-5854
PO Box 1060
Reading, PA 19607-1060
 
[log in to unmask]
www.gai-tronics.com


>>> [log in to unmask] 07/29/05 10:45AM >>>
Ummm, I'm not so sure about Joe's statement.  Shouldn't that read "more
copper will give less resistance and result in less impedance (less
inductance, more capacitance) all else being the same?"

Roger

-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of
Matthew Lamkin
Sent: Friday, July 29, 2005 10:32 AM
To: [log in to unmask] 
Subject: Re: [DC] Trace width ratio to pad

Ah, that's it, bamboozle him with his own techno babble..
Now that's the best suggestion yet.

You can also get the assembly department to define their preferences and
whatever assembly want is usually enough to make it a law written in
stone :-)


<snip>
For Signal traces you might what to use the argument that more copper
will give him more resistance and actually will cause more impedance to
the rise time on his circuit.  This may cause him to rethink his
request.  Sometimes if you talk their language you can get your point
across without having to use other drastic measures.  ;-)

        Joe J. - C.I.D.
<snip>

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