12Pt400B

Lowest spring constant - 0.3 N/m (± 40%)

The 12Pt400B is RMN’s probe with the lowest spring constant. It is most useful for contact AFM measurements with minimum contact force (SCM and SMM). The 12Pt400A is the preferred probe for Agilent SMM applications.

      • Tip shank length: 80 μm (± 25%)
      • Cantilever length: 400 µm (± 15%)
      • Cantilever width: 60 µm (± 15%)
      • Spring constant: 0.3 N/m (± 40%)
      • Frequency: 4.5 kHz (± 30%)
      • Tip radius: < 20 nm / < 10 nm - 12Pt400B-10

Technical Features

Material: Solid platinum or platinum-iridium probe tip and cantilever supported on standard AFM probe sized ceramic chip, connected to conductive gold bonding pad with conductive epoxy. RMN also has probes available without gold contact pad, to help reduce stray capacitance. 
Probes on standard sized substrates have a part number ending in the letter B (i.e. 25Pt300B).
 
Probes designed specifically for the Keysight (Agilent) Scanning Microwave Microscope (SMM) have the letter A rather than B (i.e. 12Pt400A).
 
Additional substrates:
  • C - Substrate without gold bonding pad, to help reduce stray capacitance (= to A dimensions)
  • D - Substrate has a 200um gold transmission line the entire length of the chip  and the back is completely covered in gold (standard size chip)
  • E - Substrate has the same features as the D substrate, only it is thinner (5 mil thick)