XNC12

PROBE

Typical radius of uncoated tip 10 nm
Typical spike radius 10 nm
Spike height
Resulting tip radius with the coating 30 nm
Full tip cone angle* 70°
Total tip height 3.5 nm
Probe material Silicon nitride
Probe bulk resistivity 0.01 - 0.025 Ohm*cm
Tip coating None or Gold
Detector coating Gold

The XNC12 series probes have 2 different triangular silicon nitride cantilevers on one side of the holder chip. The cantilevers are thin and soft. Each cantilever has a square pyramidal silicon nitride tip with a sharpened apex.

The probes have a 70 nm thick gold coating on the back side of the cantilever that enhances laser reflectivity. Two options are available for the tip side coating: no coating or a 35 nm thick gold coating.

Application

The XNC12 probes are intended for contact mode measurements on biological and other soft samples in air and liquids. The gold coating on the detector side of the cantilever ensures strong and stable reflectivity in various gaseous and liquid ambients.

The uncoated tips provide very good resolution, while the gold coated tips offer extra protection when scanning very soft samples. In addition, gold coated tips are suitable for tip functionalization.

2-cantilevers series

Cantilever		Resonance Frequency, kHz			Force Constant, N/m
Cantilever		min	typical	max	min	typical	max
12 series	Cantilever A		17			0.08
12 series	Cantilever B		67			0.32

*The full cone angle may be less than 40° at the last 200 nm of the tip end.

ORDERING OPTIONS

Click on a product type below to order online.

2-lever

12 series 17 - 67 kHz
(0.08 - 0.32 N/m)
XNC12/Cr-Au
XNC12/Cr-Au BS