Copper clad prototype board - copper foil thickness

The thickness of the copper foil on the prototype board is listed in the "Material" filter condition. For example, in the common option "Copper-clad FR4, single-sided, 1 oz", 1 oz indicates the thickness of the copper foil.

It is defined as: 1 oz copper foil is evenly spread on 1 square foot (ft ² ) of the prototype board to achieve the corresponding thickness. In other words:

1 oz = 28.35 g/ ^ft2

Copper foil density = 8.93 g/cm ³

1 square foot = 929.03 ^cm2

Therefore, 1 oz copper foil thickness = 28.35/8.93/929.03 ≈ 35 um or 1.35 mil

Common PCB thicknesses include the following sizes:

1/2 oz = (17.5um), 1 oz = (35um), 2 oz = (70um) and 3 oz = (105um)

The board thickness listed in this post is the combined thickness of the copper foil and FR4 (epoxy glass cloth laminate).