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 ################################################################