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Mail*Link(r) SMTP FWD>FAB: PCB Materials
Denis--
Memory seems to recall seeing a product announcment for either a base material
and/or prepreg. Rogers markets a high dielectric constant (dk) material with
a dk in the range of 9-10 for an organic equivalent of alumina.
Many years ago, we made some custom material using a loaded epoxy and glass
fabric (2 plys of a 116), we loaded the resin with a ceramic powder -
titanium dioxide with dk>75 (or some of the titanates) could be used. dk was
about 12, and conductor adhesion was marginal (but acceptable for the
experiment).
Ralph Hersey
e-mail: [log in to unmask]
--------------------------------------
Date: 4/2/96 12:52 PM
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Item Subject: cc:Mail Text
Hello,
Does anyone have information on PCB materials with a dielectric
constant of 5.5 (or higher)? We are trying to reduce trace impedances
on a standard (59-mil dielectric) thickness 2-layer board while using
reasonable trace widths.
Thanks,
Denis Mori
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Subject: FAB: PCB Materials
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