At present, the copper thickness of the PCB board is calculated by oz. 1oz means that the average copper foil weight in an area of 1 square foot is 28.35g. What does oz mean? How is oz converted into daily thickness units?

Oz is the abbreviation of unit ounce, transliterated as "ounces", is an English unit of measurement, also known as the British two as a unit of weight.

Weight unit:

1oz=28.35g (g) 1 oz = 16 Dram (dram) 16 oz = 1 lb (pound)

Conversion method:

The weight of the copper foil divided by the density and surface area of the copper is the thickness of the copper foil.

  1 square foot = 929.0304 square centimeters, copper density = 8.9 kg / dm ^ 3

Let Copper be thicker and solve the equation:

X*929.0304cm 2 *8.9g/cm3=1oz=28.35g X=0.0034287cm=34.287um

So 1oz=34.287um