Breakthrough in SThM was achieved through innovative probe design
- Silicon cantilever with hollow SiO₂ tip integrated with 50 nm thermocouple at the apex of the tip
- Thermal isolation of the sensor allows accurate measurement of sample temperatures- 0.01 °C sensitivity
- Choice of materials and probe design allow measuring high temperatures- up to 700 °C
- Two types of VTP probes:
- VTP-200 for Tapping™/Peak Force Tapping™/Contact
- VTP-500 for Contact mode
- Design also allows imaging in temperature mapping mode (TMM) or conductivity mapping mode (CMM) by changing the position of AFM laser on the cantilever
- Probes are pre-mounted on adapter boards specific to AFM systems
| Parameter |
Nominal value |
| VTP-200 |
VTP-500 |
| k (N/m) |
9.9 |
0.63 |
| f (kHz) |
107 |
17 |
| Length (µm) |
200 |
500 |
| Width (µm) |
50 |
50 |
| Thickness (µm) |
3.5 |
3.5 |
| Height (µm) |
16 |
16 |
