Pad Hole Ring Copper Specification
1oz
min trace4MIL
min trace space4MIL
min space between the trace and bigcopper6MIL
min hole size0.2MM (7.874MIL)
min pad sizeMin hole size + 2x5MILs
space between hole to trace (inner layer)7MIL
min pad ring5MIL
2oz
min trace7MIL
min trace space7MIL
min space between the trace and bigcopper8MIL
min hole size0.3MM (11.811MIL)
min pad sizeMin hole size + 2x8MIL
space between hole to trace (inner layer)8MIL
min pad ring8MIL
3oz
min trace10MIL
min trace space10MIL
min space between the trace and bigcopper10MIL
min hole size0.35MM (13.7795MIL)
min pad sizeMin hole size + 2x10MIL
space between hole to trace (inner layer)8MIL
min pad ring10MIL
4oz
min trace12MIL
min trace space12MIL
min space between the trace and bigcopper10MIL
min hole size0.4MM (15.748MIL)
min pad sizeMin hole size + 2x12MIL
space between hole to trace (inner layer)9MIL
min pad ring12MIL
Tolerance
Trace Width and Trace Space±10%
Diameter of PTH±3MIL
Diameter of NPTH±2MIL
Finish Board Thickness±10%