You will probably hear something like .7 mils for half ounce, and 1.4 for
one
ounce, but take that with a grain of salt.
Copper clad material has a tolerance, and typically comes in on the low
side,
because it saves a whole bunch of copper for the manufacturer in the long
run
(and they can control the thickness much more accurately than the tolerance
that they are allowed).

That's what I've heard anyway....
Hmmm, maybe you should take THIS with a  grain of salt, eh? haha

But I can say beyond a shadow of a doubt that we have had good success in
our impedance calculations by using .6 for half ounce and 1.2 for one ounce.


onward thru the fog,
Jack

                -----Original Message-----
                From:   Mark Holmes [mailto:[log in to unmask]]
                Sent:   Thursday, March 09, 2000 3:15 AM
                Subject:        Copperweight vs thickness

                Hi all,

                I am looking for a table or conversion method that gives
copper thickness
                for a given copper weight.
                I am used to copper weight being measured in oz per sq. ft,
but the software
                I am evaluating needs
                the copper thickness entered in thou'