LAYER CHARACTERIZATIONHall effect measurement systemsSpecial systems

HCS10Hall effect measurement system with electro-magnet

The HCS10 is a Hall effect measurement system with electromagnet which, using the Van Der Pauw method, makes it possible to measure mobilities, densities, Hall coefficient and resistivity in different types of materials. The water-cooled electromagnet works in combination with a programmable power supply and a current inversion switch very useful for characterizing certain special substrates (with low mobility of charge carriers for example)

Specifications:

• AC/DC current
• Fields: -0.9 to 0.9T
• Max Frequency: 0.1Hz
• Temperature: 77K to 870K
• I(V) curve plotting
• Compact system

Applications:

- Si, Ge, SiGe, SiC, GaAs, InGaAs, InP, GaN, ZnO, TCOs
- Optoelectronic component
- Nanomaterials
- Sensors, MEMS
- Conductive polymer
- Oxide deposit
- Ceramic & Glass
- Batteries
- Electrodes
- Electronic photovoltaic

HCS100Hall effect measurement system with Halbach configuration

The HCS100 uses a magnet in Halbach configuration (permanent magnet in donut configuration), in order to apply a DC or AC magnetic field to the sample. The Halbach array coil has a lower intrinsic inductance than conventional coils. The Halbach array coil can therefore produce a relatively high magnetic field at a lower inductance and hence a higher power factor compared to conventional coils.
This system is therefore a powerful tool for the characterization of demanding samples, as noise measurements can easily be suppressed in most cases.

Specifications:

• AC/DC current
• Fields: -0.5T to 0.5T
• Temperature: 77K to 770K
• I(V) curve plotting
• Compact system

Applications:

- Si, Ge, SiGe, SiC, GaAs, InGaAs, InP, GaN, ZnO, TCOs
- Optoelectronic component
- Nanomaterials
- Sensors, MEMS
- Conductive polymer
- Oxide deposit
- Ceramic & Glass
- Batteries
- Electrodes
- Photovoltaic

HMS7000Photonic Hall Effect measurement system

The HMS7000 Photonics will this time use the Van Der Pauw method under illumination to measure the response of several internal parameters of the material under different photonic stresses. This equipment is perfectly suited to the world of photovoltaics and the study of photoelectric semiconductors.

As for the other HMS series, it will characterize:

• Mobility of charge carriers
• Density of majority carriers
• The type of doping (P/N)
• Hall Voltage / Hall Coefficient
• Surface resistances, resistivity

Specifications:

• Fixed magnet: 0.51T
• "Visible illumination" photonic module (LED R,G,B)
• External source adapter (UV, IR)

Applications:

- Si, Ge, SiGe, SiC, GaAs, InGaAs, InP, GaN, ZnO, TCOs
- Optoelectronic component
- Nanomaterials
- Sensors, MEMS
- Conductive polymer
- Oxide deposit
- Ceramic & Glass
- Batteries
- Electrodes -
Photovoltaic

ABOUT OUR Special systems

Microworld also offers another series of more specific Hall Effect systems which come in three distinct categories. As the other systems, these make it possible to characterize the mobility of the charge carriers, the density, the type of majority dopant, the voltage & the Hall coefficient as well as the resistivity / conductivity of the substrate, always using the Van Der Pauw method and Lorentz Force. A software allows to drive the temperature and the magnet movement (semi-automatic).

HMS7000:

• Fixed magnet: 0.51T
• "Visible illumination" photonic module (LED R,G,B)
• External source adapter (UV, IR)

HCS10:

• Electro magnet
• Variable AC or DC fields

HCS100:

• Crossover Halbach configuration
• Variable AC or DC fields

Applications:

- Si, Ge, SiGe, SiC, GaAs, InGaAs, InP, GaN, ZnO, TCOs
- Optoelectronic component
- Nanomaterials
- Sensors, MEMS
- Conductive polymer
- Oxide deposit
- Ceramic & Glass
- Batteries
- Electrodes
- Photovoltaic