Paul I don't think this will answer all your questions but we offer all of these materials. At least some of the information you asked for is available in a single chart in the Material Property Comparison Chart at Merix's website. http://www.merix.com/main_res.html > ---------- > From: PAUL BROWN[SMTP:[log in to unmask]] > Reply To: [log in to unmask] > Sent: Thursday, May 20, 1999 10:58 AM > To: [log in to unmask] > Subject: [TN] Alternate PWB materials > > Hi fellow techneters, > I would like to know if anybody can tell me the basic differences > between Nelco 4000-13, GETEK FR408 and standard FR4 (i.e. differences > in > CTE, stiffness, electrical characteristics, process capabilities, > Tg.........ect). I'm willing to pay big bucks for the > answers.................well not really but I would certainly be > appreciative. > > Paul Brown > > ################################################################ > 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's web site (http://www.ipc.org) "On-Line Services" > section for additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or > 847-509-9700 ext.312 > ################################################################ > ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################