Sensing & readout

1 K prober

qprobe

Compact ~83 mm cryogenic prober for standard cryostats; ~0.8 K device temps with ~10 mW cooling power.

Cryogenics · Contact supplier

outer_diameter: 83 mm · device_temperature: ~0.8 K · cooling_power_required: ~10 mW

100 mK prober

qprobe

Sub-100 mK cryogenic prober for dilution refrigerators with thermal isolation of the positioning stage.

Cryogenics · Contact supplier

sample_temperature: 75 mK · rethermalization_time: < 1 min · thermal_management: Thermal isolator between positioning stage and sample (patent pending)

4 K probe station

qprobe

Joint qprobe–attocube turnkey system for electrical and optical probing at true 4 K.

Cryogenics · Contact supplier

temperature: true 4 K · cryostat_partner: attocube closed-cycle · characterization: Electrical and optical

Cryogenic probe cards

qprobe

Custom cryogenic DC/RF probe cards (>100 DC, tens of RF) designed and validated for low-temperature probing.

Sensing & readout · Custom

dc_probes: > 100 · rf_probes: tens · customization: Number, arrangement, and properties match bonding pad layout

Gate Leakage Current Measurement Box (SP1046)

Basel Precision Instruments

6-channel pA–10 µA gate leakage monitor installed between LNHR DAC and sample without adding gate noise.

Control electronics · Contact supplier

part_number: SP1046 · channels: 6 · current_range: pA to 10 µA

Low Noise High Stability I to V Converter (SP983c)

Basel Precision Instruments

Ultra-low-noise floating-input I/V converter, gain 10⁵–10⁹ V/A, for dilution-fridge current readout.

Sensing & readout · Contact supplier

part_number: SP983c · gain: 10^5 to 10^9 V/A · lpf_cutoff: 30 Hz to 100 kHz

Low Noise Low Drift Differential Amplifier (SP1004)

Basel Precision Instruments

1 MHz true-differential voltage preamp with ultra-low noise and actively stabilized offset drift (<0.3 μV/K).

Sensing & readout · Contact supplier

part_number: SP1004 · bandwidth: 1 MHz · gain: 100 to 10000

Microscope head

qprobe

Stable cryostat microscope head with LED, camera, focus, and tilt control for live imaging of the cold chip.

Sensing & readout · Contact supplier

features: LED, camera, focus control, 2-axis tilt control · objective: Mounted inside cryostat if needed · field_of_view: Depends on optical path length inside cryostat

mK probe station

qprobe

Turnkey probe station to ~10 mK on a fast Qinu table-top cryostat (~5 h cooldown), with magnetic-field option.

Cryogenics · Contact supplier

base_temperature: 10 mK · cooldown_time: ~5 hours (RT to base) · cryostat_partner: Qinu optical table-top

Basel Precision Instruments

Ultra-low-noise DAC, preamps, I/V converters, and cryogenic microwave filter/thermalizer units for quantum and mK experiments.

Control electronics · Microwave & RF · Cryogenics · Sensing & readout · Basel, CH

Low Noise Factory

Cryogenic HEMT LNAs plus ultra-low-loss isolators and circulators for mK microwave readout chains.

Microwave & RF · Sensing & readout · Gothenburg, SE

qprobe

Cryogenic probe stations and compact cryo-probers for high-throughput quantum device testing down to millikelvin.

Cryogenics · Quantum devices · Sensing & readout · Basel, CH