Denis,

        Rogers corporation makes various types of laminates with dielectric
     constants from 2.2 to 10.2. Some of these materials are PTFE based
     (RT/duroid and RO3000 products) while others are thermoset plastic
     (TMM and RO4000 products). The RT/duroid and TMM materials are
     targeted for military and high performance applications while the
     RO3000 and RO4000 materials are for commercial applications. If you
     want to see our home page this is the URL  http://www.rogers-corp.com
     or you can give me a call when I get back to the office (602
     961-1382). Thanks.

     Art Aguayo, Technical Services/Applications Engineer
     [log in to unmask]
     http://www.rogers-corp.com


______________________________ Reply Separator _________________________________

Subject: FAB: PCB Materials
Author:  DENIS_MORI::(DENIS) at ~FABRIK
Date:    4/2/96 10:20 AM


From: [log in to unmask]
Date: Tue, Apr 2, 1996 10:20 AM
Subject: FAB: PCB Materials
To: TechNet
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

     [log in to unmask]