Glen Walpert wrote:
On Thu, 20 Jan 2011 23:32:53 -0500, Phil Hobbs wrote:

I have a partly-baked idea for improving temperature controllers, but it
requires a bunch of nickel plated polyimide film--say 3 to 8 mils thick,
with 40 microinches of electroless nickel on it.

I need to pattern it and then solder to it. Copper is too conductive,
which is a pity, since I already have a roll of polyimide with 1/2 oz Cu
on it.

I haven't found anybody that's interested in supplying it in engineering
quantities (say 10 square feet).

Anyone here have a favourite shop that does nickel plating on plastic?

Thanks

Phil Hobbs

Not sure about the nickel, but Minco will do custom polyimide film
heaters to your design:

http://www.minco.com/products/heaters.aspx?id=71

Thanks, I asked them already--they aren't interested in supplying plain
sheets.

I thought about vacuum dep, but it'll get expensive in the sort of
quantity I want, and there's still the adhesion issue. If I still had
my own evaporator, I'd probably do it that way--I could just wrap the PI
round the inside of the bell jar!

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058

email: hobbs (atsign) electrooptical (period) net
http://electrooptical.net