Hi Vicka,
While the resistivity of wrought copper is rather uniform in the range of
0.155 to 0.160 ohm-gram/m2 [remember, foil thickness is specified as oz/ft2 or
grams/m2], ED foil will vary with the thickness and the amount of codeposited
organics from 0.162 to 0.181 and higher.
The density of ED foil is lower than wrought, as is the modulus of
elasticity.



Regards,
Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL 32174 USA
Phone: 386-437-8747, Fax: 386-437-8737, Cell: 386-316-5904
E-mail: [log in to unmask], Website: www.engelmaier.com


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