Scott,
0.2 inches is not going to be very flexible. There are other options like rigid flex,
circuits that are polyimide glass at the ends but have a flex conection. Can you tell us more
about your needs. How many layers, what weight of copper, conductor requirements
(line/space)? Maybe someone has some other ideas for you.
Chuck Brummer
"Scott R. Madans" wrote:
> Sorry, the world of mils and microns is new to me. It is
> 0.2 inches!
>
> - Scott
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Chuck
> Brummer
> Sent: Thursday, November 29, 2001 07:58 AM
> To: [log in to unmask]
> Subject: Re: [TN] Flexible PC Board
>
> Scott,
>
> 2/10s of a mil? Like .0002"? You need a dielectric to hold
> the conductor and I don't think
> you will find anything that thin. We work with thinner
> materials than most and we make a
> number or parts on .0005" polyimide with 3 microns of
> copper. If anyone has anything less
> than that I would like to talk to them.
>
> Chuck Brummer
> Acuson (818)734-4930
>
> "Scott R. Madans" wrote:
>
> > Howdy All,
> >
> > I am new to this list and I thank the folks at 3M's
> > Microflex division for pointing me here. Y'all can blame
> > them later after reading this lengthily post...
> >
> > The acceptance of my lousy prototype was excellent, so I
> was
> > looking at ideas for a more robust and fine-tuned design
> > using a flexible circuit.
> >
> > I need a flexible PC board operating at 12v DC. Size is
> > about 1/2" x 6" or 8". The mounting is static, but the
> > flexible shape is required because of the variety of
> > mountings. Also, the outdoor environment will be greasy,
> > dusty, wet, cold (-50F), sunny (UV) and hot (120F). So,
> it
> > needs to be durable. There will be no direct abrasives.
> > The board and protection should be no more than about
> > 2/10ths thick.
> >
> > Is there something like that out there? You've probably
> > seen that "soft-touch" switch rubber used on keypads. A
> > slightly firmer version of that with copper cladding (or
> > something to etch) would be about perfect, as long as it's
> > tough stuff.
> >
> > Thanks in advance and I appreciate your guidance.
> >
> > - Scott
> > (775) 849-2030
> >
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