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

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