You need to call the specific manufacturer for each of these materials,
as they may vary.

> ----------
> From:         Gary Griffin
> Sent:         Friday, February 20, 1998 2:18 PM
> To:   [log in to unmask]
> Subject:      [TN] Dielectric constants
>
> Thanks to everyone who tried to help with my original question about
> pre-preg material dielectrics.
>
> As it turns out I used the wrong term.  What I meant was, I would like
> to get the dielectric constants for the materials commonly used to
> make PCBs.  These include FR4, Tetrafunctional FR4, G10, GTEK,
> Polyimide, Cyanate Ester, Teflon and the new material from GORE, what
> ever it is called.  Would it be possible to get the ranges as well,
> since I know that the dielectrics are not necessarily constant.
>
> Assume that testing is out of the question.
>
> Since I am at it.  Have I missed any materials?  I know that there are
> some new ones that I may  not be aware of.
>
> Gary
>
>
> ==================================================
> Gary Griffin
> Engineering Manager
> Phone (408) 501-7156
> Fax   (408) 437-1976
> Pager 1-800-759-7243 Pin: 145-1886
> Alpha pager email griffin_p or [log in to unmask]
> SABER group Interface Products
> ################################################################
> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV
> 1.8c ################################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with
> following text in the body: To subscribe:   SUBSCRIBE TechNet  To
> unsubscribe:   SIGNOFF TechNet
> ################################################################
> Please visit IPC web site (http://jefry.ipc.org/forum.htm) for
> additional information. For the technical support contact Dmitriy
> Sklyar at [log in to unmask] or 847-509-9700 ext.311
> ################################################################
>

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
################################################################