Two New MSS Sensors for Torque Magnetometry added to Special Developments List

NANOSENSORS™ has completed the development of two additional Membrane-type Surface-stress Sensors (MSS) ( SD-MSS-1KPMAl and SD-MSS-1KPMAu ) dedicated for torque magnetometry.

Torque magnetometry is a useful technique often employed for assessment of various materials like organic conductors, magnetic and superconductor materials.

Now NANOSENSORS™ has added two new types of MSS for this application “SD-MSS-1KPMAl” and “SD-MSS-1KPMAu” to the NANOSENSORS™Special Developments List.

These sensors can be used for nanomechanical sensing, material assessment, static/pulsed-field torque magnetometry, force sensing, and other applications.

The new sensor chips share the common MSS features, i.e., a membrane (or platform) supported with four beams on which piezoresistors are embedded at the fixed ends.

In the newly developed sensor chips however, the sensing beams are longer than in MSS chips meant for odour sensing applications (SD-MSS-1K2G) and form “bending” and “torsional” axes.

There are now three types of Membrane-type Surface-stress Sensor (MSS) dedicated for torque magnetometry available.

All three have in common that for two different functional axes, differently designed piezoresistors are embedded to effectively sense the torque generated by the sample. Considering a use at cryogenic temperatures, the resistance of the piezoresistor is designed relatively low and in the range of 0.3 – 1.2 kΩ. Each piezoresistor can be individually connected so that various measurement configurations can be arranged by the user.

Compared to the conventionally used piezoresistive cantilevers, the new types of Membrane-type Surface-stress Sensor “SD-MSS-1KTM, SD-MSS-1KPMAl and SD-MSS-1KPMAu ) have many advantages:

  • easier to handle the chip
  • relatively robust structure
  • larger sample capability, etc.,

all of which facilitate preparations of measurement setup and increase turnaround of material assessment.

The chip dimension of the newly added SD-MSS-1KPMAl and SD-MSS-1KPMAu are 3.0 x 2.0 x 0.3 mm.

Compared to SD-MSS-1KTM two piezoresistive cantilevers and a coil are additionally integrated in SD-MSS-1KPMAl and SD-MSS-1KPMAu.

The SD-MSS-1KPMAl’s electric configuration features Aluminum pads for wire bonding or gluing.

NANOSENSORS Membrane-type Surface-stress Sensor MSS for torque magnetometry SD-MSS-1KPMAl . Newly added to the NANOSENSORS Special Developments List.
NANOSENSORS Membrane-type Surface-stress Sensor MSS for torque magnetometry SD-MSS-1KPMAl ( with Aluminum pads )

The SD-MSS-1KPMAu’s electric configuration features Gold pads for wire bonding or gluing.

NANOSENSORS Membrane-type Surface-stress Sensor MSS for torque magnetometry SD-MSS-1KPMAu . Newly added to the NANOSENSORS Special Developments List
NANOSENSORS Membrane-type Surface-stress Sensor MSS for torque magnetometry SD-MSS-1KPMAu ( with gold pads )

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