Figure 15

The master mold with area of 250 mm × 250 mm machined by optimized depth of cut (a) machined cu-plated master mold with micro triangular pyramid patterns, (b) the surface roughness profile of machinerd micro triangular pyramid pattern.
The master mold with area of 250 mm × 250 mm machined by optimized depth of cut (a) machined cu-plated master mold with micro triangular pyramid patterns, (b) the surface roughness profile of machinerd micro triangular pyramid pattern.