Drill Holes

Drill Holes

Property  
Min. finished plated hole size 0,1 mm
Aspect ratio  
Hole size 0,1mm 8:1
Hole size 0,15mm 10,6:1
Hole size 0,2mm 12,5:1
Hole size > 0,2mm 20:1

Min. plated hole
Min. plated hole = B =  0.1mm (finished size, mechanical drill 0.15mm)






Aspect ratio (PTH)
The aspect ratio defiens the smallest possible holes compared to laminate thickness.
Ex. A:B = 12:1