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Designed for Hall effect measurement. Made with non-ferromagnetic materials
Flagship mini electrical probe stage
-190°C - 600°C with liquid nitrogen cooling option
38 mm × 40 mm sample area
Closed chamber with gas purging capability
4x independent electrical probes with manual positioning
Optional triaxial connections
Optional extra feedthrough
The HCP621G-PMH is a gastight, temperature-controlled probing stage capable of heating and cooling between -190°C and 600°C. Four (4) independent electrical probers are manually positioned onto the sample, which rests on a 30mm x 28mm silver thermal block. Electrical heating provides precision temperature control up to 600°C, while Instec's optional LN2-P system enables sample cooling via LN2 circulation down to -190°C.
The HCP621G-PMH gastight chamber supports a positive-pressure gas purge up to +0.5 Bar for reactive/ Inert gasses or humidity control. The alternative HCP421V-PMH model comes with a vacuum-tight chamber, and is rated for a positive pressure +0.5 Bar gas purge, or a rough 10*10^-3 mBar evacuation for prevention of condensation or oxidation while heating/ cooling. The vacuum-tight version is strongly recommended for extended duration experiments at low temperatures, but has a reduced upper heating limit of 400ºC under vacuum.
The HCP621G-PMH is specially designed using non-ferromagnetic materials in the heating/ cooling core that will not interact with applied magnetic fields. The non-magnetic region extends in a 50mm radius from the center of the sample area, and is suitable for pole diameters of up to 100mm. The 27mm thick chamber easily fits into a range of permanent or electromagnets without compromising electric field strength. Pair the HCP621G-PMH with Instec's M06T manual Hall effect station to perform Hall effect measurements with simultaneous precision temperature control and atmospheric control.
Upgrade to a -MP model to access advanced customization options such as additional electrical feedthroughs, triaxial/ SMA connector options, custom lids and much more.
For more information on INSTEC probing solutions, check out our full Electrical Probing Solutions Catalog!
Temperature Control |
mK2000 with programmable precision LVDC output to minimize electrical noise |
Thermal Block |
Silver thermal block for superior thermal uniformity |
Minimum Temperature |
-190°C (with optional liquid N2 cooling) |
Maximum Temperature |
600°C |
Temperature Sensor |
100 Ω Platinum RTD |
Maximum Heating Rate |
+50°C per minute at 100°C |
Maximum Cooling Rate |
-40°C per minute at 100°C |
Minimum Heating and Cooling Rate |
±0.01°C per minute |
Temperature Resolution |
0.01°C |
Temperature Stability |
±0.05°C(at>25°C),±0.1°C(at<25°C) |
Power Supply |
Universal power input - 250W max (not including LN2 System or water cooling accessory) |
Software |
Windows software to record and export temperature-time data |
Electrical Probers |
Four (4) DC to 500 MHz electrical probes (200V /1A max) - Prober material options such as tungsten-rhenium, beryllium-copper, or other materials - 25um or 5um tip radius options - Additional standalone electrical feedthroughs available by request |
Probe Positioning |
Manual cantilever probes independently positioned to any point of the sample area before sealing chamber. Ideal for pad sizes larger than 600 um x 600 um* *Smaller pad sizes require -MP or -MPS models |
Connectors |
Coaxial BNC connectors for HCP621G-PMH base-model
Floating, triaxial or SMA connectors available with HCP621G-PMH+ model |
Sample Surface |
Electrically grounded sample area* (*Floating or triaxial options for back-biasing available with HCP621G-PMH+ customizable model) |
Optical Access |
Optical access to sample via reflection |
Minimum Objective Working Distance | 8.5 mm |
Top Aperture |
Ø18 mm (standard), with Ø22mm window Ø28 mm (optional), with Ø31.75mm window Ø50mm (optional), with Ø42mm window *alternate window options available with HCP621G-PMH+ model
|
Top Viewing Angle |
±48° from normal |
Window Defrost |
External window defrost |
Sample Area |
38 mm x 40 mm |
Inner Chamber Height |
6 mm |
Sample Access |
Quick-access cover with spring-loaded screws |
Atmosphere Control |
Supports positive pressure gas purge up to 0.5 Bar or rough vacuum of 1mBar for humidity control, or prevention of condensation and oxidation. |
Frame Cooling |
Integrated frame cooling with optional chiller system |
Mounting |
Base model includes tapped holes on frame and removable side-mounted L-Brackets. Horizontal and vertical mounting adaptors available for select instruments, or by custom design |
Frame Dimensions |
180 mm x 130 mm x 26.5 mm |
Weight |
1500 g lightweight aluminum body |
PRODUCT |
Key Features |
Motorized polarity switching Strong neodymium magnets create uniform magnetic flux Variable Hall voltage User-friendly operation software Ohmic contact check |
HCP621G-PMH Base-Model Options
Add-on options for the HCP621G-PMH base model are listed below. These items can be added at any time, and can even be installed by the end-user in the field. When adding a cooling system to an existing HCP621G-PMH system, it may be necessary to upload a new parameter file to the temperature controller.
Active Sample Cooling The standard HCP621G-PMH supports precision temperature control from room temperature to 600°C. Enable active sample cooling with one of our LN2 suction-pump cooling systems to unlock active cooling rates as high as -50°C/min and a lower temperature limit of -190°C. Note: When cooling below -60, it is highly recommended to utilize the gas-tight chamber to prevent condensation and ice formation via a gas-purge or low-vacuum. | |
- Add LN2-P4D3 Cooling System 4-stage LN2 suction pump cooling system with 3L LN2 Dewar PN: LN2-P4D3 |
- Add LN2-P8D10 Cooling System 8-stage LN2 suction pump cooling system with high-capacity 10L LN2 Dewar PN: LN2-P8D3 |
Window Size and Viewing Angle The standard HCP621G-PMH has a gas-tight chamber lid with a viewing aperture of 18mm (22mm glass window) with a viewing angle of ±48.0° from normal. For applications which require a larger observation area and/or a larger viewing angle, alternate chamber lids are available. Larger window sizes increase the viewing area and angle, but comes at the cost of slightly reduced temperature uniformity. It is also possible to remove the viewing aperture entirely to reduce the overall thickness of the HCP621G-PMH to increase magnetic field strength or improve magnet compatibility. | |
- 18mm aperture lid (Standard) PN: R0220-HCP621G-PMH |
- 27mm aperture lid PN: R03170-HCP621G-PMH |
- No-aperture lid (reduces overall chamber thickness) PN: R000-HCP621G-PMH |
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Window Material
The HCP621G-PMH utilizes removable and exchangeable windows to optimize performance for any wavelength. Base-model options are shown below, but specialized options are available per request with the HCS621GXY+ model. Note: The exact window part number depends on desired chamber lid, as multiple sizes are available | |
- Quartz Glass (Standard) PN: WQ1 |
- BaF2 Glass for IR PN: WBaF2 |
- ZnSe Glass for IR PN: WZnSe |
- CaF2 Glass for IR PN: WCaF2 |
- Saphire Glass for UV/IR PN: WSP |
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Sample Mounting Threaded holes on the sample area are included with each HCP621G-PMH base model, and a set of up to 4 spring loaded sample clips can be added to conveniently secure tricky samples, or to secure sample when the stage is used in a vertical configuration. Sample clips are recommended with the HCP621G-PMH to secure the sample while landing electrical probes. Electrically grounded sample clips are standard, electrically floating clips are available by request | |
- Threaded holes on thermal block (Standard) Hole dimensions available by request PN: HCP621G-PMH |
- Add up to 4X sample clips (grounded or floating Spring loaded stainless steel sample clips PN: SFC-HCP621G-PMH, SFC-HCP621G-PMH-F |
Environmental Control With its Gas-tight chamber, the HCP621G-PMH base model is capable of positive pressure gas-purge up to 0.5 Bar or very rough evacuation down to 1mBar. Gas ports are available in either straight or right angle orientations. Right angle ports are generally more low-profile, and may be preferable for certain applications. Relative humidity control is also available via our RHC01 relative humidity controller. | |
- +0.5 Bar gas-purge/ very rough Vacuum [1 mBar] with straight ports (Standard) PN: SAGP-HCP621G-PMH |
- +0.5 Bar gas-purge/ very rough Vacuum [1 mBar] with right-angle ports PN: RAGP-HCP621G-PMH |
- Add Humidity Control with RHC01 PN: RHC01 |
- Low Vacuum [10^-3 mBar] / +0.5 Bar gas-purge (Standard) PN: (See --> HCP421V-PMH) |
Mounting Adapters Mounting adaptors allow the HCP621G-PMH to be easily mounted onto your optical instrument of choice. All HCP621G-PMH models include side-mounted L-brackets and tapped holes on the base for easy mounting to any instrument. Optional mounting adaptors are available for Instec's TPM-CX40, Olympus, Leica, and many more microscope models. For the full list of mounting adaptors, contact sales@instec.com. Note: Vertical mounting configurations may require sample fixture clips (SFC) to ensure compatibility. | |
- Tapped holes and L-brackets (Standard) |
- Vertical |
- Horizontal |
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Special options for HCP621G-PMH+ customizable model
Upgrade to HCP621G-PMH+ for access to special options including:
Transmission Aperture Some samples may require a transmission-based optical system, or may have optical properties which change with temperature and/ or electrical signal application. The HCS621G-PMH adds a full transmission aperture to the chamber for compatibility with transmission optical systems. | |
- No Transmission Aperture (Standard) |
- add 2mm transmission aperture PN: HCS621G-PMH |
Electrical Feedthroughs For applications that more that 4 electrical feedthroughs, the HCP621G-PMH can be customized to include up to 2 additional standalone electrical feedhthroughs, including coaxial, SMA, fiber-optic, ribbon cable, HD-DB9 or custom PCB options. Coaxial or triaxial type feedthroughs are available in two configurations: Grounded, where the outer BNC conductor is connected to earth ground for shielding, and Floating, where the outer BNC conductor is left floating relative to earth ground, allowing the shielding conductor to be used as a second signal conductor. | |
- 1x or 2x vacuum blanks (Standard) PN: F0V-HCP621G-PMH |
- 1x or 2x Grounded BNC Connectors with pogo pin terminals PN: F1V-HCP621G-PMH |
- 1x or 2x Floating BNC Connectors with 2x pogo pin terminals each PN: F2V-HCP621G-PMH |
- Customized standalone electrical feedthrough (DB-9, ribbon-cable, fiber optic, RF and much more!) |
Upgraded Temperature Controller Options
The HCP621G-PMH is designed for use with Instec's mK2000 series temperature controllers. Electrical probing solutions like the HCP621G-PMH come standard with an LVDC output mK2000 temperature controller for minimal electrical noise. Furthermore, the mK2000 itself can be customized with various add-on options such as additional monitoring sensors, analog voltage output and more.... | |
- Additional monitoring sensor for mK2000B PN: mK2000B-TMK |
- Advanced controller upgrades (see mK2000B page for details) Ask sales@instec.com for more details |
Custom Options
If you can imagine it, Instec can make it! Instec offers complete customization services to tailor any of our standard products to your unique application. | |
- KBr, Kapton windows with custom lid |
- Custom covers |
- Electrical feedthroughs |
- Floating surface area with Triaxial BNC |
- Custom sample holder |
... And much more! |
Contact sales@instec.com for more information