ST-500 Series

  • Low vibration level and the positional drift
  • Temperature range from ~3.5 K to 475 K (optional: 8 K to 650 K) (depending on probes)
  • Works either with liquid nitrogen or liquid helium
  • Helium consumption less than 1 L/h
  • Accommodates up to 2 in (51 mm) diameter wafers (optional: up to 8 in [203 mm])
  • Up to seven cooled, easily interchangeable, micro-manipulated probe arms
  • Electrical measurements from DC to 67 GHz
  • Wide variety of inexpensive LF probe tips that are easy to replace
  • Very low triaxial probe arms leakage current of just a few fA
  • Non-contact, non-destructive Kelvin probes
  • Multi-tip probes
  • Fiber probe arms with single and multi-mode fiber options
  • Optional optical access through the sample mount for transmission measurements
  • Additional electrical feedthroughs with cables and wires to sample area
  • Optional special miniature vacuum chamber to transfer sample under vacuum from glove box to probe station
  • Very smooth x-y-z travel stages for all monoscope system assemblies
  • Optional movable sample holder
  • System customization options
  • Looking for a cryogen-free option for your existing "wet" probe station? Optional recirculating gas cooler eliminates the use of liquid helium for "wet" systems.
Janis — a Lake Shore Company

Variable temperature cryostat

The Janis ST-500 series probe stations are high-performance research instruments designed to provide affordable vacuum and cryogenic probing of wafers and devices. The proven ST-500 cryostat is the platform for these probe stations and includes low vibration technology (originally designed for high spatial resolution optical microscopy) to provide outstanding sample positional stability. Researchers around the world are using these systems to conduct research in a wide variety of fields, including MEMS, nanoscale electronics, superconductivity, ferroelectrics, material sciences, and optics.

ST-500-EM

  • Room temperature, water-cooled electromagnet with a variable horizontal magnetic field of up to 0.6 T (6000 G) with typical field homogeneity of 2% over a 25 mm diameter (1% over 10 mm diameter)
  • Up to four interchangeable probe arms
  • Open-cycle probe station option based on low vibration, microscopy ST-500 cryostat
  • Closed-cycle (cryogen-free) probe station option
  • Gaussmeter and Hall probe to measure magnetic field
  • Optional, unipolar, high stability, air-cooled power magnet power supply
  • Optional bipolar, high stability, water-cooled power magnet power supply
  • Optional manually controlled, precision rotary stage with a minimum step size of 1°
    Note: Would increase the base temperature by a few degrees
  • Optional attocube nano-positioner rotary stage with a minimum step of 1 millidegree
    Note: Would increase the base temperature by a few degrees
  • Optional software to perform electrical measurements using cryogen-free horizontal field electromagnet probe system
  • Optional special miniature vacuum chamber to transfer sample under vacuum from glove box to probe station

UHV probe stations

Janis offers a complete range of probe stations suitable for making electrical measurements in a UHV environment. Several standard designs are available, and systems can be custom configured to meet a wide variety of user requirements.

ST-SCON

Superconducting magnets in the ST-SCON model offer a variable vertical magnetic field up to 3 T with typical field homogeneity of 5% over a 10 mm diameter.

ST-500-PM

The ST-500-PM models incorporating permanent magnets are available for magnetic field dependent measurements. These systems are ideal for the study of magneto-optical and magneto-electrical properties in a variety of experiments, including quantum dots, spintronic devices, and nanoscale electronics. These are available in horizontal or vertical configurations.

Horizontal magnetic field parallel to the sample mount plane — two inexpensive cylindrical permanent magnets to create a variable horizontal magnetic field up to 1000 G.

Vertical magnetic field perpendicular to the sample mount plane — an inexpensive set of six permanent ring magnets create a vertical magnetic field that can be step varied between 2000 G and 300 G.

Optional Items for probe stations:

  • Additional interchangeable probe arms
  • Additional vacuum chamber ports for a possible future upgrade with more probe arms
  • Special miniature vacuum chamber to transfer sample under vacuum from the glove box to probe station
  • Moveable sample holder
  • attocube nano-positioner linear movement or rotary stages incorporated into probe station
  • Additional electrical feedthroughs with cables and wires to sample area
  • Special optical windows including side and bottom window configurations and different window materials
  • Additional metering flow control valve with variable flow (3.6 to 72 Torrl/s) to introduce different gases into the vacuum chamber
  • System customization options
  • Automatic temperature controllers
  • Turbo pumping station including a with a back-up mechanical pump or oil-free diaphragm pump
  • Pump-line vibration isolator between the pump and the probe station
  • Pneumatic vibration isolation table with or without a portable ultra-quiet air compressor
  • Mechanical pumping station for operation below 4.5 K by pumping helium vent port
  • Liquid nitrogen storage Dewar with inlet adapter to accept the probe station transfer line
  • Low vapor pressure thermal anchoring greases
  • Looking for a cryogen-free option for your existing "wet" probe station?  Optional recirculating gas cooler eliminates the use of liquid helium for "wet" systems.