1 K prober

Sub-Kelvin probing in standard cryostats

An easy way to transform your cryostat into a high-throughput cryogenic probe station. With proven reliability and a track record of accelerating quantum device characterization by 10×–100× (see Candido et al.). The prober requires only ~10 mW of cooling power, enabling installation, for example, on the still flange of a dilution refrigerator and achieving device temperatures of ~0.8 K.

Compact design

With an outer diameter of only 83 mm, the prober fits into standard cryostats (Bluefors, ICEOxford, kiutra and others), allowing you to transform your existing cryostat setup into a cryogenic probe station. Its non-magnetic construction and compact design also enable operation inside the bore of a superconducting magnet.

DC and RF probe cards

Characterize your devices from DC up to the GHz range. Probe cards are optimized for cryogenic operation to ensure reliable performance at the cryostat’s base temperature, including proper thermalization of the probes. Each probe card is custom-designed to match your device’s bonding pad layout.

Optical access

Real-time imaging of the cold chip using our custom-developed microscope system enables automated probe alignment. In addition to electrical device characterization, optical device characterization can also be performed.

Die-scale probing

A 20 × 20 mm² probing area enables testing of hundreds of devices in a single cooldown, maximizing experimental throughput. Larger probing areas are available upon request.

Automation

Device probing can be fully automated (localize device → contact device with probes → run measurements → move to the next device and repeat) using our Python-based API, which integrates seamlessly with your measurement control software.

Sample holder

Our standard sample holder accommodates a 20×20 mm² die. Its optimized design ensures reliable thermalization of the sample to the cryostat’s base temperature. The holder also integrates a temperature sensor and a heater. Customized sample holders are available upon request.