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Micro test chamber
motorized tips
(option 80K to +1000°C)

Motorized tips (option 80K to +1000°C)

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Presentation:
The microprobe is a hyper-compact precision measurement tool to analyze the electrical, optical and physical properties of samples at a microscopic scale (dielectric, ionic, semiconductor, electronic) and their interfaces (e.g. grain boundaries and electrodes).

These measurements can be performed under the desired environmental conditions of temperature, humidity, gas, vacuum, etc. in order to reproduce real in-situ conditions.

Up to contact pad sizes of 200 µm, manual tips, potentially assisted by the external xyz micropositioner, allow to achieve the required tip positioning accuracy.
For contact pads smaller than 200 µm, it is recommended to use the piezoelectric micropositioners of the motorized tips.
Precise positioning is possible remotely at the desired location. For very small contact pads, we offer very fine tips less than 10 µm.

Despite the expansion/contraction of the substrate depending on the temperature, the contact point with the tip does not change thanks to the micropositioner.

Versatile use and very broad fields of application:

  • Characterization and testing of materials such as advanced ceramic materials, electronic and display materials, materials for high-temperature dielectric and insulating sensors, materials for fuel cells and solid electrolytes.
  • Characterization of photovoltaic and thermoelectric materials
  • Thermal conductivity of raw and/or thin-film materials
  • Characterization of MEMS/NEMS and sensors Micro/Nano
  • Potentially any application related to the measurement of electrical, optical and physical properties

Specifications of piezoelectric positioners:

  • Speed: 15 mm / s
  • Stroke (X and Y axes): 8 mm
  • Stroke (Z axis): 3 mm
  • Holding force: 250 gf ~ 300 gf
  • Handling dimension: 20 × 20 × 30 mm
  • Resolution: < 1 μm

The number of tips:

  • In standard configuration: 4 tips.
  • In custom-made: see the example photo with 8 tips. Contact us for any specific request.

Control of environmental conditions:

  • Precise humidity control system.
  • Mass flow controller (MFC) for gases, up to 4 gas lines.
  • Precise pressure and vacuum level control system.

7 configurations for sample temperature regulation:

1 - No temperature control device.

The sample is simply physically held on the substrate holder and can be grounded.

2 - Peltier device:
a - Range -40 to +200°C, sample size: 19 x 19 mm
b - Range -40 to +170°C: Peltier device with hole diam. 3.2 mm, for transmittance measurements e.g. Sample size: 16 x 16 mm

3 - Ceramic heater, sample size: Ø 1/2 inch (12.7 mm)
Thermocouple value inside the heater unit:
a - Ambient to +450 °C
b - Ambient to +750 °C
c - Ambient to +1000 °C

4 - Liquid nitrogen cooling device
Temperature: 80 K (-193.15 °C) at ambient
Temperature ramp up and down: 20 °C/min

Options: The microchamber for testing under tips with motorized positioning is available with the following options:

  • Cover: solid, or with ZnSe porthole for infrared transmittance, or with 1’’ diameter porthole or even a cover entirely made of quartz.
  • Thermocouple for measuring the surface temperature of the substrate.

Custom-made: For your most demanding and specific needs, contact us to design your custom-made microchamber, by defining:

  • Dimensions
  • Number of tips (probes)
  • Type of tips
  • Optical components
  • Temperature range
  • RF measurements
  • Control of humidity
  • Process gas control
  • High current
  • Etc.

Connectez-vous à notre expert
Marie-Helene Bedelem
mh.beddelem@microtest-semi.com

Merci d'entrer vos coordonnées pour télécharger la fiche technique.