From my not a supper vast list of flex designs, I would go with "B" just for the reliability side of things. You didn't mention if this is a dynamic or static flex and that will also make a big difference in your answer, but for me, I'm with "B".
Later...
Scott Decker - Staff Engineer, PCB Design Services CID+ - Electronic Systems Center
UTC AEROSPACE SYSTEMS
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Frank Kimmey
Sent: Thursday, September 28, 2017 7:44 AM
To: [log in to unmask]
Subject: [External] [TN] Flex manufacturing
I sure hope there are some flex folks out there today.
I need to know which would likely be cheaper in large quantities:
A: 2 layer with 2 mil wide traces
B: 3 layer with 4 mil wide traces
I guess the big question is what kind of premium should be expected when asking to etch to 2 mils Any and all help is appreciated.
Thanks,
FNK
Frank N Kimmey CID+
Electrical Engineer / PCB Design
VeriFone Inc
1400 W Stanford Ranch Road, Suite 200
Rocklin, CA 95765 USA
W: 1-916-625-1818
M: 1-916-833-9877
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