What is RF4 or am I confusing this with FR-4...........? > -----Original Message----- > From: McGlaughlin, Jeffrey A [SMTP:[log in to unmask]] > Sent: Monday, February 19, 2001 12:47 PM > To: [log in to unmask] > Subject: Re: [TN] materials > > FR-4 is a fire retardant woven glass epoxy substrate. Getek, a trade name, > is a similar product using PPO epoxy in place standard epoxy resin. > Polyimide is a replacement resin for the epoxy still using woven glass. > Teflon is a trade name for PTFE plastic it is used with a number of > fillers > to create a substrate. Rodgers is a manufacturer who produces all or most > of > the above plus a line of thermo set plastic laminates used for pcb > manufacture. For more specific answers on the properties of these > materials > see IPC-4101. > Jeffrey A. McGlaughlin, C.I.D. > Sr. PCB Designer > Battelle Memorial Institute > Columbus Ohio > [log in to unmask] > -----Original Message----- > From: KUMAR [mailto:[log in to unmask]] > Sent: Monday, February 19, 2001 12:11 PM > To: [log in to unmask] > Subject: [TN] materials > > hello, > whats the difference between the materials fr4, gtec, rogers, > polymide & teflon ? > thanx > kumar > > -------------------------------------------------------------------------- > ------- > Technet Mail List provided as a free service by IPC using LISTSERV 1.8d > To unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF Technet > To temporarily halt delivery of Technet send the following message: SET > Technet NOMAIL > Search previous postings at: www.ipc.org > On-Line Resources & Databases > > E-mail Archives > Please visit IPC web site (http://www.ipc.org/html/forum.htm) for > additional > information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 > ext.5315 > -------------------------------------------------------------------------- > ------- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------