Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: Determining the "Weight" of copper on PCBs?

From: "lcdpublishing" <lcdpublishing@...>
Date: 2006-08-31

Thanks much Dennis - that's what I was looking for!

Chris



--- In Homebrew_PCBs@yahoogroups.com, "dl5012" <dl5012@...> wrote:
>
> Hi Chris,
>
> Try this URL
> http://www.streamlinecircuits.com/streamline/pg_thickResist.shtml
>
> Your guess was pretty close; 0.0014" for 1 ounce copper cladding.
> The 1 ounce info is correct (I've seen that number before), the
half
> ounce thickness in microns is wrong; should be closer to 18um.
And
> the first entry is 0.125 ounce, not 125...
>
> Regards,
> Dennis
>
> --- In Homebrew_PCBs@yahoogroups.com, "lcdpublishing"
> <lcdpublishing@> wrote:
> >
> > Hi Guys,
> >
> > I buy all my PCBs from "Surplus" dealers. Now that I have a bit
of
> > collection going AND that some of my designs are getting a bit
> > more "powerful", the weight of copper is getting important.
Does
> > someone know what the thickness of copper is for the different
> weights?
> >
> > Example 1 oz. copper is .001" thick or something similar
> >
> > Thanks
> >
> > Chris
>