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| Date: | Tue, 29 Nov 2005 18:57:12 -0500 |
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May be I'm completely confused but metals are metals, not dielectrics.
Vladimir
Sent from my Blackberry Wireless
Vladimir Igoshev, 519-888-7465 ext.5283
-----Original Message-----
From: TechNet
To: [log in to unmask]
Sent: Tue Nov 29 18:00:46 2005
Subject: [TN]
I am posting this ? for a colleague:
"We are fabricating some boards for a customer that will be 1 oz of copper
on Duroid 6010. They are considering two surface finishes: HASL (Hot Air
Levelled Solder) and 150u" Nickel under 5-10 u" Gold.
The question they are asking is as follows: What are the dielectric
properities of the Nickel/Gold finish vs. those of the HASL finish.
Does anyone know the answer? I figured that the insulating material (the
Duriod) and the conductor thickness (copper) would have the largest
influence on dielectric performance and that the surface finish would have a
negligible impact on performance. Is this true?"
Thanks!
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