[SI-LIST] Re: Skin Effect, Au, and Cu

Richard,
Here is an article that you may want to check out:

Bayes, Martin, and Horn, Al,
"Effects of conductor surface condition on signal integrity,"
<CITE>Circuit World</CITE>, vol. 30 no. 3, pp. xx, 2004.  <P>

It discusses the effects of surface roughness, electroless nickel (Ni-P)
finish, immersion tin (Sn) finish, and PWB foil adhesion treatments on
conductor dissipative losses up to 14GHz.

I ran across it by accident last night, while doing research at the
University of Kentucky Engineering Library for my web pages on designing
electronics to be lead-free, RoHS-compliant, and WEEE-compliant (
   http://www.dbicorporation.com/rohsbib.htm
   http://www.dbicorporation.com/rohs.htm   )
to supplement my books which were published last year (Robust Electronic 
Design Reference Book, VOlumes 1 and 2,
   http://www.dbicorporation.com/book-out.htm   )

Enjoy!
                John Barnes KS4GL, PE, NCE, ESDC Eng, PSE, SM IEEE
                dBi Corporation
                http://www.dbicorporation.com/

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