Call me and we can discuss off-line I don't want to sound like an advertisement Yes UL approval is available Hope I can help FNK Frank N Kimmey EM Designer C&K Systems, Inc (916) 353-5366 [log in to unmask] > ---------- > From: Gerald G. Gagnon[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;Gerald G. Gagnon > Sent: Friday, May 01, 1998 5:17 AM > To: [log in to unmask] > Subject: Re: [TN] FR4 material/Rogers material compatibility? > > Hi Jeff > > OK. I'll bite. Who makes such circuits? Are they UL approved? > > Thanks for anything provided. > > Gerry > > -----Original Message----- > From: McGlaughlin, Jeffrey A [SMTP:[log in to unmask]] > Sent: Friday, May 01, 1998 7:26 AM > To: [log in to unmask] > Subject: Re: [TN] FR4 material/Rogers material compatibility? > > Mitch - > > I personally worked on one 4 layer design for an RF Transmitter that > used a > sandwich of 2 RO4003 cores an a center layer of FR-4 prepreg. This > design > preformed extremely well and was simple to tune. I have also bonded > RO4350 > with G-tek prepreg which formed a very rigid and thermal stable PWB. > Contact me off-line and I can recommend a fabricator for these types > of > PWB's. > > Jeffrey A. McGlaughlin > [log in to unmask] > Printed Circuit Board Designer > Battelle Memorial Institute > Columbus Ohio > > > -----Original Message----- > From: Mitch Morey [SMTP:[log in to unmask]] > > I have a "similar" question which hopefully someone can > answer. > I've > been asked by our engineering group if FR4 material, is > compatible > with > the Rogers 3000 and 4000 materials? We'd like to make a board > using > the > Rogers material for some circuitry and FR4 material with the > other > circuitry. > > Any luck? > > Mitch Morey > Sr PCB Designer > NSI Communications (was ComStream Corp) > San Diego CA > > > > ################################################################ > 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 > ################################################################ > > ################################################################ > 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 > ################################################################ > ################################################################ 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 ################################################################