PRSA 300×100µm SCD Probes

Piezo-Resistive Sensing Probes
Piezo-resistive self-sensing silicon cantilever probe bonded to a 6×5 mm PCB with a 10 pin connector or non-bonded as silicon chip.

Piezo‐Resistive  Sensing  Active  (PRSA)  probes  are  silicon  cantilevers  with  a  long‐life  single  crystal  diamond  tip  (SCD).  Integrated piezo‐resistors and a heater are used for self‐sensing  and self‐actuating the cantilever deflection.

The piezo‐resistors  are integrated into a matched Wheatstone bridge to raise the  sensitivity and compensate environmental thermal drift. Selfsensing readout technology makes laser adjustment obsolete  and saves time during a cantilever change.

The free space above  the  cantilever  enables  new  applications  and  combination  of  AFM with various instruments. The SCD tip exhibits low surface  energy, which prevents contamination when imaging sticky or  biological samples.

The cantilever chip is bonded to a small  printed circuit board (PCB) with a small connector to enable a  quick cantilever change. A counter part PCB for the cantilever  PCB can be connected to a low‐noise pre‐amplifier with a flat  flex cable.

PRSA 300×100µm SCD Probes

Tip radius (apex) / height  <15 nm / 12…16 µm
Tip material Long life Single Crystal Diamond (SCD) <100> along tip axis
Glue between tip and cantilever non-conducting temp-stability: up to 70°C
Resonant frequency 30..65 kHz
Spring constant 1…15 N/m
AFM mode contact, non-contact
Sensitivity* 1…2 µV/nm
Force sensitivity* 0.5…56 nN/µV
Length, width 300 ±5 µm, 110 ±3 µm
Material silicon cantilever, boron doped 1k Ohm piezo resistors, aluminium tracks
Deflection sensing on chip piezo-resistive bridge
Actuator external shaker or on chip heater (20-45 Ohm)
Electrical connections bonded to small PCB with connector (counter part PCB available) or optional bonding pads on chip
Chip dimensions (h, w, l) 0.3 / 1.2 / 2.5 mm
* not amplified (signal direct at the chip), 2.048 V bridge supply

  • Delivery time
    2 weeks
  • Minimum order
    € 500,-
  • Shipping charges
    EU: Regular mail, worldwide, registered: 25 €
    Worldwide: Regular mail, worldwide, registered: 35 €
  • Terms of payment
    30 days net from the date of invoice
    The delivered products stay in our property until complete payment.

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+43 660 442 4871

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