Tips are coated with conductive, wear resistent metal carbide.
Smooth and well defined tip surface.
|Radius after coating :
Full cone angle:
|~ 50 nm
< 10° over length of 2 µm
l = 125 µm, C = 40 N/m, fo = 300 kHz
l = 225 µm, C = 3.0 N/m, fo = 75 kHz