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Reply To: | TechNet E-Mail Forum. |
Date: | Fri, 1 May 1998 08:17:55 -0400 |
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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
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