Flow Cryostat Probe Station

The ARS PS-L Flow Cryostat Probe Station uses Liquid Helium or Liquid Nitrogen as the cooling agent to reach cryogenic temperatures of 4K or 77K respectively.

The core of the system is the same for both the Liquid and Closed Cycle Probe Stations, which enables the Flow Cryostat to be removed from this system and replaced with a Closed Cycle (cryogen-free) configuration at a later point, if your needs change.

ARS manufactures both the Helitran Helium transfer system and the probe station. This integrated approach ensures consistent performance and facilitates diagnostics and service of the complete system.

Applications

• Magnetic properties

• DC, RF properties

• Microwave properties

• MEMS

• Nanoscale electronics

• Superconductivity

• Electrical and optical properties of nano circuits

• Quantum dots and wires

• Non-destructive device testing

 Typical Configuration

• Liquid Flow Cryostat

• Transfer Line - Standard 6’ (8’ or 10’ options)

• Flow Meter Panels

• 10” Diameter Stainless Steel Vacuum Chamber with 6 Micromanipulated Probe Ports and 2 Spare NW 80 Accessory Ports

• 9” Diameter Nickel Plated OFHC Copper Radiation Shield

• 2.25” Diameter Grounded Sample Holder made out of OFHC Copper.

• DC, Microwave, or Fiber Optic Probes

• 4 Sensors and 2 Heaters for temperature control and monitoring

• 4 Channel Temperature Controller with interconnecting cable to the cryostat.

• 7:1 or 12.5:1 Zoom Microscope with Coaxial Light

• Rotary and Turbo Pumping Systems Available

Features

• 77K or <4K base temperature

• 1 in. or 2 in. test area

• 2.75 in. clear view top window

• Up to 6 micro-manipulated probe arms

  • DC, RF, or Fiber Optic Probe Options

• 2 additional accessory ports

• Coaxial or triaxial single tip probe holders with
  replaceable tungsten or beryllium copper probe tips

• 1 µm sensitivity precision actuators

• High stability spring-loaded linear motion stages

• All stainless-steel vacuum enclosure for low vacuum and
  fast pumping times

• 7:1 or 12.5:1 Zoom Microscope with Coaxial Light

• Super soft copper braids transmit maximum cooling power and minimal vibrations to cold stage

• Heated radiation shield for faster sample change

• Cryogen free

• Fully customizable

 Options & Upgrades

• Probe arms: up to six

  • DC, RF, or Fiber Optic Probe Options

• Temperature:

  • 450K or 800 K high temperature interface

• Sample Plate:

  • Coaxially or triaxially biased sample plate

  • Nanopositioner mounting stages

  • DIP Package sample holders

  • Ring Magnets

• Sensors and Wiring:

  • Custom wiring configurations available

  • Custom temperature sensor configurations available

  • Cernox sensor upgrades

• Load lock upgrade

• Turbo upgrade for faster cool-down times

• Windows and WD

  • Window material upgrades

  • Custom window materials

  • Anti-reflective window coatings

  • Recessed windows or in-vacuum objectives for low working distance