Date: Mon Jan 15 2001 - 12:30:26 PST
Sumitomo's Resin Coated Copper Foil is used by board vendors/fabricators when
micro-vias are required on a board design. We want to run Gigahertz signals on
the one side of this dielectric material but thier spec (sort of...) says that
the dissipation factor at 1GHz is 0.22!!!!!
( http://www.sumibe.co.jp/english/topics/1999-08-31.html )
Can any one out there familiar with this material confirm weather or not this is
correct? We think it's a typo.
-- Sal Aguiņaga Jr.
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