A simple Google search of the words "trace resistance" yields over 4 million
hits and the first page should be sufficient enough to answer your question.

Craig Sullivan
Process Engineering
Impedance/Electrical Test
Sanmina-SCI - Owego Division
Chair - IPC D-21c Controlled Impedance Task Group
(607)689-5225
mailto:[log in to unmask]



-----Original Message-----
From: Ralph Richart [mailto:[log in to unmask]]
Sent: Wednesday, January 25, 2006 10:10 PM
To: [log in to unmask]
Subject: [TN] Trace Resistance


Can anyone point me in the right direction to estimate what trace resistance
should be along a circuit (on a printed circuit board)?  Is there a model
for this (trace width, height and length)?  What other considerations would
affect resistance along a trace?  Does material selection and surface finish
also play a part?

Thanks for your input...


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-----------------------------------------------------
Ralph

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Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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Scanned by Sanmina-SCI eShield  _____________________________________________________________________________