HA_NC/W2C+

A$ 482A$ 1,319

High Accuracy High Resonance frequency noncontact AFM probes HA_NC series with stable and wear-resistant long lifetime W2C conductive coating, each chip has 2 cantilevers, resonant frequency 235 kHz / 140 kHz, force constant 12 N/m / 3.5 N/m. W2C+ conductive coating is modified to provide better stability in high humidity conditions

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SKU: E10 Category:

Description

ETALON is a new series of excellent composite AFM probes.
In terms of quality-to-price ratio, it has no analogues in the world market.
High Accuracy High Resonance frequency noncontact AFM probes HA_NC series with stable and wear-resistant long lifetime W2C conductive coating.
The main advantages of W2C coated probes are:
  • Hard coating which stays stable at applied high voltages and flowing currents at the contact point ‘tip-sample’ which cannot be received with standard metal coated probes (Fig.1-3);
  • High conductivity (close to metal conductivity);
  • Typical curvature radius less than 35nm;
  • W2C+ was modified by volume doping with anticorrosion elements thus providing long-term performance in high humidity conditions.

 

Experiments, carried out in december 2015 by engineers of NT-MDT Spectrum Instruments, approved great stability of W2C+ coated probes under high voltage, current and tip-sample pressure. AFM cantilevers showed to be able measure current of several mkA during the whole scan without any degradation. The same excellent performance continued after 100 I-V curves by the range +/- 10V.

Specification of HA_NC/W2C probe series:
 Material
 Polysilicon lever,
 monocrystal silicon tip
 Chip size 3.6 x 1.6 x 0.4 mm
 Reflective side

Tip side

 Au (20-30 nm)

W2C (20-30 nm)

 Cantilever number 2 rectangular
 Tip shape Octahedral at the base, conic on the last 200 nm
 Tip cone angle φ 30 degrees on the last 200 nm
 Full tip height ≥10 µm
 Pedestal/tip ratio 1:1
 Tip curvature radius less than 35 nm

AFM probe

 

 

 

 

 

Cantilever typeABTypical dispersion
Length, L (µm)94124± 2
Width, W (µm)3434± 3
Thickness, H (µm)1.851.85± 0.15
Force Constant (N/m)123.5±20%
Resonant frequency (kHz)235140± 10%

Additional information

WeightN/A
DimensionsN/A
Package size

15, 50

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