Electronics Forum | Wed Feb 23 02:20:09 EST 2000 | Roni H.
Hi, I need a wear resistance PCB finishing over bare copper (If exist!), the surface have a moving part which slides over it and bare copper as a surface is not good enough. I'll apprechiate any information. Thanks Roni
Electronics Forum | Mon Feb 04 09:53:35 EST 2002 | Ole J
I need some information on how much leakage resistance that I can expect in a normal PCB. Ex. between two tracks on the same layer or on opposite layer. There must exist some design rules ?
Electronics Forum | Mon Feb 04 20:27:25 EST 2002 | davef
1,000 G ohm ||100 M ohm Dielectric Constant ||9.5 ||4.9 Loss Factor ||5 - 20 ||200 * E indicates exponent Continuing: * Spacing between same plane traces effect the electical parameters between the traces. * Dielectric materials used between diff
Electronics Forum | Tue Jun 03 16:42:33 EDT 2003 | RF Lurker
Does anyone have a method to calculate the thermal resistance of a given copper area?
Electronics Forum | Wed Apr 27 14:10:30 EDT 2005 | Bruno Lalonde
I m looking to implement a maintenance program here at Exfo, I'm looking form the norms on the hand soldering iron (tip to ground resistance and Voltage linking). Thank
Electronics Forum | Wed Apr 27 21:59:34 EDT 2005 | davef
Check with your soldering iron supplier. We'd expect them to say: * Tip to Ground Resistance:
Electronics Forum | Fri Jun 06 16:11:25 EDT 2003 | RF Lurker
I understand that there may not be a lot of material on this, as most threads I've seen discourage doing it. It goes against DFM to do it. But I wish to use a large copper area instead of heat sink and thermal epoxy to cool a regulator. But I can'
Electronics Forum | Tue Jun 03 20:54:29 EDT 2003 | davef
It's always good to have the lurkers out in the open. Welcome. Being uncertain about what you seek, lets take a couple of tacts: * For resistivity, look here: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=24595 * For resistance to dama
Electronics Forum | Thu Apr 28 08:08:46 EDT 2005 | Bruno Lalonde
Thank for your quick answer, waht to you mean by yammering, I'm sorry my english is not very good
Electronics Forum | Thu Apr 28 09:11:34 EDT 2005 | davef
Don't apologize. Your English is fine. * In Enlish look here: http://www.freesearch.co.uk/dictionary/yammering * In French, maybe: Parler � tort et � travers
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