Copper Thickness (Ounces vs Mills of Thickness)
2008-11-06 by Roland F. Harriston
Use this. This information is readily availabe via a Google search. The copper in a PCB is rated in ounces, and represents the thickness of 1 ounce of copper rolled out to an area of 1 square foot. For example a PCB that uses 1 oz. copper has a thickness of 1.4mils. 1/2 oz. 0.7 mils 1 oz. 1.4 mils 2 oz. 2.8 mils Roland F. Harriston, PD