Hi Kaye,
The 2001 IPC Expo in Anaheim had a session I attended on "green" FR-4. As
memory serves, Polyclad, Isola and Nelco presented papers including an
excellent one on non-bromated FR-4. They covered the challenges of
balancing alternative flame retardant additives while maintaining typical
FR-4 properties (Tg, dimensional stability, Dk, etc.). I'm sure the
laminate suppliers (Isola, Polyclad, Nelco, Rogers, Matsushita, etc.) can
tell you what they have available - might even be on a webpage. Or, if you
have the IPC Proceedings CD-ROM the papers should be in there (now where'd I
file that thing.)
Hans
Integrity First - Service Before Self - Excellence in All We Do
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Hans M. Hinners
Electronics Engineer
Warner Robins - Air Logistics Center (WR-ALC/LUGE)
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Robins AFB GA 31098-1622
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-----Original Message-----
From: Kaye Knotts [mailto:[log in to unmask]]
Sent: Thursday, October 11, 2001 12:15 PM
To: [log in to unmask]
Subject: [TN] Alternative to FR-4
Dear Technetters,
I have been asked a question that I need help answering.
Is there a printed circuit board base material that
would meet the same specs as multi-functional FR-4
and does not use Bromine in the flame retardant chemistry.
Can someone answer the question or point me in the right direction.
Thank you very much.
Kaye Knotts
Keithley Instruments
Solon, Ohio
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