2.0_NN-HAR_All2.1_NN-HAR_All

Needleprobes

High Aspect Ratio Needleprobes

When accuracy in trench testing is key, our customers can count on K-Tek Nanotechnology’s industry-leading Needle Probes to get the job done. Our superior products will produce high accuracy images and are available in a wide array of diameters and lengths to support various modes and applications.

$495.00 – $2,145.00

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Specifications

Cantilever
Length
Width
Thickness
Resonant Frequency kHz
Force Constant Nm
± 10μm
± 5μm
± 0.5μm
Min
Typical
Max
Min
Typical
Max
NN-HAR-CM13Contact Mode450 50 2 9 13 17 0.07 0.2 0.4
NN-HAR-CM28Contact Mode225 50 2 20 28 35 0.4 0.6 1
NN-HAR-T300Tapping Mode125 40 4 200 300 400 25 40 75
NN-HAR-FM60Force Modulation Mode225 30 2 45 60 75 1 3 7

Cantilever Specifications
Material Single Crystal Silicon
Cantilever Shape Cross-Section CM28, T300, FM60: Rectangular/Trapezoidal
CM13: Beam
Number of Cantilevers 1
Coating CM28, T300, FM60: Au reflex (on non-tip side)
CM13: Au reflex (on both sides)
Chip Size 3400 µm (L) x 1600 µm (W) x 300 µm (T)
Tip Specifications
Needle Material Ag2Ga
Tip Height CM28, T300, FM60: 14 μm (not including needle)
CM13: 17 μm (not including needle)
Tip Offset (Setback) 15 – 25 μm
Tip Curvature Radius CM28: 20-100 nm (25 nm typical)
CM13, T300, FM60: 20-100 nm (50 nm typical)
Needle Length CM28: 4-7 µm (5 µm typical)
CM13, T300, FM60: 1-13 µm
Needle Diameter 50 nm
Needle Angle 7°-15° (12° typical)
Needle Electrical Resistivity 1 – 1.1 x 10-7  Ωm (1.05 x 10-7 Ωm typical)
Electric Resistance of Tip & Cantilever CM28: 50-80 Ω
CM13, T300, FM60: 1-3 µm – 15-45 Ω, 4-7 µm – 50-80 Ω, 7-13 µm – 80-120 Ω

Product Details

Main Characteristics
  • Electrically conductive
  • High aspect ratio tip
  • 1 to 100 µm in length*
  • 50 to 500 nm in diameter
  • Various substrate (e.g. Tuning fork, STM probe, AFM cantilever)
  • Various arrangements (e.g. parallel and semi-parallel to AFM cantilevers)

* Custom angles and lengths are available – contact us for details.

Advantages:
  • Simple and Useful Geometry
  • Easier to Use and Interpret the Results
  • Electrically Conductive
  • Versatility for More Complex Applications
  • Price advantage
  • Robust and Long Lasting
  • High Performance
Application:
  • Cell probing
  • Liquid property measurements
  • Conductive AFM

Label-free detection of the aptamer binding on protein patterns using Kelvin probe force microscopy (KPFM)

The KPFM characterization of lysozyme patterns.

Subsurface characterization of carbon nanotubes in polymer composites via quantitative electric force microscopy

Enhanced EFM subsurface imaging of 0.5% SWCNT (LA)–polyimide nanocomposite film using an HAR probe. EFM bias voltage and lift height is 12 V and 50 nm, respectively. (a) SEM image of a conventional probe, (b) SEM image of an HAR probe. Inset: enlarged image of circled area near tip apex. (c) and (d) EFM phase image of subsurface CNTs using a conventional and HAR probe, respectively. (e) and (f) Cross-section analysis of segmented line at (c) and (d), respectively. EFM phase scale 20◦. The EFM phase signal at circled peak in (f) is both stronger and sharper than that in (e).

Selective self-assembly at room temperature of individual freestanding Ag2Ga alloy nanoneedles

X-ray-diffraction pattern from needles grown on a thin film of Ag.Inset(SAD) selected area diffraction pattern from a single needle that shows that single needles are highly crystalline.

Micro-Wilhelmy and Related Liquid Property Measurements Using Constant-Diameter Nanoneedle-Tipped Atomic Force Microscope Probes

(a) SEM images of a NeedleProbe with simple cylindrical geometry.  (b) Schematic o the AFM experimental setup for liquid probing using NeedleProbe. (c) Top: schematic of the meniscus formation between the NeedleProbe and the liquid surface. Bottom: Typical force vs. distance (F-D) curve of the NeedleProbe on a liquid surface. The red line is extension and the blue line is the retraction force curve.

Free-Standing Biomimetic Polymer Membrane Imaged with Atomic Force Microscopy

(a) SEM images of a NeedleProbe with simple cylindrical geometry.  (b) Schematic o the AFM experimental setup for liquid probing using NeedleProbe. (c) Top: schematic of the meniscus formation between the NeedleProbe and the liquid surface. Bottom: Typical force vs. distance (F-D) curve of the NeedleProbe on a liquid surface. The red line is extension and the blue line is the retraction force curve.

Additional Information

Shipping
All in-stock items ship within 24 hours.
Standard Ground, 2-Day, Next Day options available.
Details Price QTY
NN-HAR-T300(1,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-CM28(5,5)

Needle Probe Length:
Product Tip Quantity: 5
$495.00
NN-HAR-FM60(1,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-T300(5,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-T300(10,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-FM60(5,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-FM60(10,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-T300(1,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-T300(5,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-T300(10,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-FM60(1,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-FM60(5,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-FM60(10,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-CM13(1,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-CM13(1,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-CM13(5,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-CM13(5,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00
NN-HAR-CM13(10,10)

Needle Probe Length:
Product Tip Quantity: 10
$985.00
NN-HAR-CM13(10,25)

Needle Probe Length:
Product Tip Quantity: 25
$2,145.00