今天是
NT-MDT
產品名稱:SThM probes
產品說明
Scanning Thermal Microscopy (SThM) is an advanced SPM mode intended for simultaneous obtaining nanoscale thermal and topography images. NT-MDT's SThM kit is able to visualize temperature and thermal conductivity distribution at the sample surface.
產品應用
SThM mode of operation with an AFM requires a specialized probe with a resistor built into the cantilever. NT-MDT's SThM module allows one to monitor the resistance changes correlated with the temperature at the end of the probe. So the system is able to monitor relative changes of sample temperature and thermal
conductivity. NT-MDT's thermal probes provide better than 100 nm lateral resolution for both topography and thermal images.
 

   
 
Sample: Optical Fiber in Epoxy.
Left – topography image,
Right – thermal conductivity image.
Scan size: 6 x 6 um.
 

 
The specialized SThM cantilever, made of SiO2 with a thin metal layer, is deposited on the probe in such a way that the highest resistance portion of the layer is concentrated near the tip apex.


產品規格
Specifications:

Probe base 2 mm x 3 mm
Cantilever (thermal SiO2) 150 um x 60 um x 1 um
Resistor metal 5 nm NiCr - 40 nm Pd
Track and pad metal 5 nm NiCr - 140 nm Au
Resistance 300-500 Ohm
Tip radius < 100 nm
Maximum temperature 160 C
Tip height ~ 10 um
SiO2 Spring Constant 0.45 N/m
Fo ~ 48 kHz
Sensitivity app. 1 Ohm/ deg C
Series resistors 2 x 100 Ohm ( +/- 25 Ohm)

 
   
SThM probe in the cantilever holder Set of probes
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