Specifications

ST-500 Series Specifications

Vibration level:±25 nm
Positional drift:±150 nm in 30 min
Vacuum environment:Regular vacuum (~10-5 to 10-6 mbar)
High vacuum (~10-6 to 10-7 mbar)
Ultra-high vacuum (~10-8 to 10-9 mbar)
Temperature range:~3.5 K to 475 K (DC probes) (650 K optional)
~3.5 K to 450 K (MW probes) (300 K to 535 K optional)
Cryogenic consumption:Helium: less than 1 L/h; nitrogen: less than 0.1 L/h
Temperature stability:±50 mK
Cooling time (for standard 2 in diameter sample mount):~30 min to 10 K, ~60 min to 5 K
Warming up time:~45 min with quick warming up option (~4 h without)
Sample mounts:
2 in (51 mm) diameter standard
up to 8 in (203 mm) optional
Grounded sample holder

Electrically Isolated sample holder with bias voltage coaxial cable

Special sample holder for light transmission experiments

Leadless chip carrier (LCC) holder
Interchangeable probe arms:DC/LF probes: DC to 20 MHz with following tips available:
-Tungsten tips with 0.1 to 200 µm tip radius (optional gold plating)
-Special tungsten bendable shank and tip (cat whisker) tips
-Beryllium copper soft tip with low contact resistance

Coaxial or triaxial (a few fA leakage current) wiring

Microwave probes:
0 to 40 GHz
0 to 50 GHz
0 to 67 GHz

Fiber probes:
Single mode
UV-VIS or VIS-IR multimode

Non-contact, non-destructive Kelvin probes

Multi-tip probes
Optical top viewport access:Standard 2.0 in (51 mm) clear aperture
Optional up to 8 in (203 mm) clear view
Monoscopes with LCD 19 in monitor or USB camera and smooth travel stages7.1 zoom, 5 µm resolution (216× magnification)
12.5:1 zoom, 3.4 µm resolution (508× magnification)
16.1 zoom 2.2 µm (626× magnification)
Probe travel: ST-500-1ST-500-2
X-axis:1 in (25 mm)2 in (51 mm)
Y-axis:1 in (25 mm)
(15 mm with MW probes)
2 in (51 mm)
(45 mm with MW probes)
Z-axis:10 mm (18 mm optional)10 mm (18 mm optional)
X-, Y-, Z-axes probe translation (incremental units of graduation):10 µm12.5 µm
Probe translation resolution: X-, Y-, Z-axes:
Motorized stages with much higher translation resolution are available
5 µm6.25 µm

UHV-ST-400 Specifications

Operating temperature5 K to 700 K
Sample size25 to 50 mm diameter (100 mm optional)
Vibration level<1 µm
Probe coverage14 to 50 mm diameter (100 mm optional)

ST-SCON Specifications

Vibration levelLess than 1 µm
Vacuum environment~10-5 to 10-6 mbar
Temperature range5 K to 420 K (with possible field limitation at the higher temperatures)
Conductively cooled 3.0 T solenoid with vertical field directionHomogeneity of 5% over a 10 mm diameter and an operating current of approximately 35 A
Cryogenic consumptionHelium: ~2.5 L/h;
Nitrogen: less than 0.1 L/h (without magnetic field)
Temperature stability±50 mK
Cooling time (for standard 2 in diameter
[50 mm] sample mount)
~2 h
Warmup time~3 h with quick warming up option (~5 to 6 h without)
Sample mounts:
2 in (50 mm) diameter
Grounded sample holder

Electrically isolated sample holder with bias voltage coaxial cable

Triaxially guarded sample holder with cryogenic triaxial cable

Special sample holder for light transmission experiments
Up to 6 interchangeable probe armsDC/LF probes: DC to 20 MHz with following tips available:
-Tungsten tips with 0.1 to 200vµm tip radius (optional gold plating)
-Special ungsten bendable shank and tips (cat whisker)
-Beryllium copper soft tip with low contact resistance

Coaxial: recommended for currents higher than 1 pA
OR
Triaxial with leakage current of 1 fA to 2 fA at 1 V: recommended for currents lower than 1 pA

Microwave probes:
0 to 40 GHz 
0 to 50 GHz
0 to 67 GHz

Fiber probes:
Single mode
UV-VIS or VIS-IR multimode
Optical top viewport access (different window materials available)Standard 2.0 in (51 mm) clear aperture window
Optional up to 3 in (76 mm) clear view window
Radiation shield optical top viewport access: (different window materials available including IR-absorbing)Standard 2.0 in (51 mm) clear view window
Optional up to 3 in (76 mm) clear view window
Ultra-high stability, bipolar, four-quadrant superconducting magnet DC power supply1 mA/h stability, with programmable field sweep capabilities and IEEE-488 or RS-232 interface. Includes digital displays of magnet current (0.1 mA resolution), magnetic field, setpoint, sweep rate (as low as 0.1 mA/s) as well as a magnet or power supply voltage, a built-in persistent switch heater power source, and a quench protection/ramp-down circuit.
Monoscopes with LCD 19 in monitor or USB camera and precise translation stages6.4:1 zoom, 5 µm resolution (216× magnification)
12.5:1 zoom, 3.4 µm resolution (508× magnification)
16.1 zoom 2.2 µm (626× magnification)
Probe travelST-1ST-2
X-axis:1 in (25 mm)2 in (50 mm)
Y-axis:1 in (25 mm)
(15 mm with MW probes)
2 in (50 mm)
(40 mm with MW probes)
Z-axis:10 mm (18 mm optional)10 mm (18 mm optional)
X-y-z axes probe translation (incremental units of graduation)10 µm12.5 µm
Probe translation resolution: x-y-z axes:
Optional motorized stages with translation resolution up to 0.1 µm
5 µm6.25 µm