KNT-SThM-3an

The new KNT-SThM-3an probe replaces the KNT-SThM-2an, which is no longer manufactured. The Unmounted SThM probe may be used for the following methods and applications:

  • Combined Thermal and Topographical Imaging
  • Temperature Measurement
  • Thermal Conductivity Mapping
  • Failure Analysis

The Kelvin Nanotechnology KNT-SThM-3an scanning thermal microscopy (SThM) probe is a monolithic, batch fabricated AFM probe for best in class temperature and thermal conductivity mapping, offering excellent flexibility with a standard low spring constant Si3N4 cantilever for easy scanning and high resolution..

Applications

Characterisation of:

  • Polymer layers
  • Semiconductor & electrical devices
  • Biological samples
  • Thin films

Pricing

One box of KNT-SThM-3an contains 5 probes:

  • UK Price:  £1,722 (ex VAT)
  • EU Sales: Quotation upon request
  • International Sales: Quotation upon request

Please use our contact form or e-mail us for a quotation

Further Information

A micro-fabricated SThM probe consisting a silicon nitride AFM cantilever and a thin film palladium thermistor located at the  tip. Manufactured using multi-level  electron beam lithography pioneered by the University of Glasgow, these probes combine a batch-fabricated functionalised probe technology with a conventional style chip and cantilever. Connection by gold tracks and pads allows biasing of the  thermistor to perform temperature  sensing and heat flow experiments. Other features include series NiCr resistors on the probe base to protect from ESD and match total resistance to most Wheatstone bridges, and a ribbed cantilever to increase stiffness and counteract temperature induced bending of the cantilever in hot environments. Sub 100nm topographic and thermal spatial resolution can be achieved.

Probe Base1.5mm × 3.3mmTip Height8µm (Typ)
Cantilever (Silicon Nitride)145µm × 120µm × 0.4µmCurrent Max2.5mA DC
Tip Resistor Metal8nm NiCr + 40nm Pd *Spring Constant0.40 – 0.7 N/m
Track and Pad Metal8nm NiCr + 145nm AuMaximum Temperature150 C
Resistance

225 – 425Ω (Typ 300Ω)

Series Resistors2 × ~ 90 Ω
Tip Radius< 100 nm  
* E-beam evaporated on an angled surface at the tip so thickness on tip is 5nm NiCr and 25nm Pd.