Plating Limits and Tolerances
Average minimum plated copper thickness: 20μm
Minimum gold over nickel thickness for edge connectors: 1μm gold over 3μm nickel.
Plated Through hole and multilayer boards - Default process
Note 1: Class 3 work is copper plated to a minimum average of 25 micron.
Note 2: Non-essential narrow tracks, spacings and small holes increase prices.
Minimum Final Copper Thickness
Single Sided Boards