Re: ATM Sputter Coater?

["James Lerch" <jlerch1@tampabay.rr.com>]

----- Original Message -----
From: "Bob May" <bobmay@nethere.com>


> I'd see what the machine is intended for.  If it does get the nice high
> vacuum needed for evaporation coatings (I might also note that various
> people can call the same basic process by different things) then I'd get
it
> for the pumps alone and then modify the baseplate as necessary to do
> evaporation of aluminum.

Two additional things to look for, Valves and Gauging.  I see these as the
two most expensive and difficult problems to overcome for anyone building a
vacuum system.   Everything else can be fabricated or scrounged off Ebay
fairly inexpensively.

BTW, anyone have a 'Rule of Thumb" guide for diffusion pump to chamber size?
This could be handy for evaluating the above system's potential.

Take Care,
James Lerch
http://lerch.no-ip.com/atm (My Bino-Scope Construction Site)