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The ResiScope II is a unique system able to measure AFM resistance over 10 decades with a high sensitivity and resolution. It can be combined with several dynamic modes as MFM/EFM (AC/MAC mode) or KFM single‐pass (AC/MAC III) providing several sample characterization on the same scan area.
The measurement is made by applying a DC bias between the sample and a conductive AFM probe (tip at virtual ground). The tip is scanning in contact mode using the laser deflection for the AFM feedback . As an independent measurement, the ResiScope II measures the sample resistance through the High Performance Amplifier (HPA).
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A dual measurement system:
Principle:
During the measurement, the DSP chooses in real time the best gain to optimize the measurement made by the amplifier module (HPA). This operating condition allows a very high sensitivity on all the range of resistivity at a regular scan speed (AFM) . Contrary to other techniques, the current between the probe and the sample is strongly reduced. This has the result of limiting the local effect of oxidation or electrochemistry and protecting the conductive probe from high current damage.
ResiScope is a smart real-time control of the appropriate ranges to obtain the best measurement (sensitivity and range). It limits the current through tip and sample is limited to prevent any damage. It is more than a simple linear or Log amplifier used for a basic current measurement
ResiscopeTM mode is a mode of contact AFM. A conductive tip saves changes in current and resistance on a wide range with an external amplifier. Curves of current / voltage can be conducted at various locations on the sample. Resistance and conductivity over to 10 decades.
The CSinstruments Resiscope can replace old controllers, for example to drive old Agilent 5100 and 5500 AFMs, thanks to high voltage outputs.
Technical Features
Resistance range
10² Ω to 10^12 Ω
Current range (ResiScope mode)
50 fA to 1 mA
AFM compatibility
CSInstruments : Nano-Observer
UHV : please contact us
Compatible AFM mode
Contact / Tapping / AC mode EFM / MFM / KFM single-pass
Operating Environment
Windows® XP. 7, 8, 10, SP3 Framework DotNet 3.5 SP1
One USB port available
Power Supply
AC 100‐240V 47‐63Hz, 1A - The appliance must be properly grounded.
Weight (net)
2kg