Pad hole ring copper Specification

Pad-hole-ring-copper Specification

copper thicknessmin tracemin trace spacemin space between the trace and bigcoppermin hole sizemin pad sizespace between hole to trace(inner layer)min pad ring
H OZ3MIL3MIL4MIL/th>0.2MM (7.874MIL)Min hole size+2X4MIL6MIL4MIL
1oz4MIL4MIL6MIL0.2MM (7.874MIL)Min hole size ﹢2×5MILs7MIL5MIL
2oz7MIL7MIL8MIL0.3MM (11.811MIL)Min hole size ﹢2×8MIL8MIL8MIL
3oz10MIL10MIL10MIL0.35MM (13.7795MIL)Min hole size ﹢2×10MIL8MIL10MIL
4oz12MIL12MIL10MIL0.4MM (15.748MIL)Min hole size ﹢2×12MIL9MIL12MIL
 Trace Width
and Trace
Space		Diameter of PTHDiameter of NPTHFinish Board
Thickness
Tolerance±10%±3MIL±2MIL±10%