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: [Homebrew_PCBs] Determining the "Weight" of copper on PCBs?

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-09-01

On Thu, 31 Aug 2006 21:06:53 +0200, 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


1oz/sq ft is 35um
0.5oz/sq ft is 18um
2oz/sq ft is 70um

1um is 10^-6m.

ST