HallinOne®: 3D Hall magnetic field sensors with integrated sensor signal evaluation

Precise and reliable measurement of the magnetic field vector

3D-Hall-Magnetfeldsensor mit integrierter Sensor-Signalauswertung
© Fraunhofer IIS/Philip Beran
Microscope image of a monolithically integrated HallinOne® 3D sensor

HallinOne® is an advanced 3D Hall sensor technology that enables the complete magnetic field vector to be captured with pinpoint accuracy using just one sensor chip. The monolithic integration of 3D Hall sensors in a standard CMOS semiconductor process ensures cost-efficient, robust and highly accurate measurement. Unique integrated micro-coils allow in-situ calibration during operation - without an external magnetic field. This also allows continuous real-time monitoring of the sensor status so that deviations can be detected and compensated for at an early stage. In contrast to alternative solutions that require complex additional process steps (e.g. flux concentrators), HallinOne® achieves equivalent or better performance - with reduced system complexity and greater design flexibility. Ideal for high-precision, non-contact magnetic field sensor systems in demanding environments.

At a glance: Technical keyfacts and benefits

Keyfacts Benefits
  • Standard CMOS-compatible on almost every technology node
  • Highly sensitive sensors with vertical up to 80 mV/T and lateral up to 160 mV/T
  • Ultra-compact with active 3D sensor area of 100 µm × 100 µm
  • In-situ calibration of X, Y and Z sensitivity as well as Z-to-X and Z-to-Y crosstalk
  • Patented offset centering technology for the widest possible dynamic range
  • Cost-effective production
  • Resistant to temperature and external stray fields due to integration of several 3D Hall elements
  • Very high dynamic range from microtesla to several tesla
  • Tailor-made ASIC solution with replica protection and miniaturization
  • Available as ASSP for fast and uncomplicated functional tests
  • Manufactured without magnetizable materials, hence free of magnetic hysteresis
Technical details in comparison: HallinOne®-ASSPs and ASICs

Our offer: Precision in every dimension with 3D Hall technology

We are experts in innovative sensor technologies and their applications. With comprehensive know-how in magnetic modelling, simulation and IC design optimized for magnetic field sensors, we develop precise solutions for your demanding measurement tasks. Our expertise ranges from the design of high-resolution 3D Hall elements to the development of complex signal processing paths directly on the chip. In this way, we create the basis for the use of intelligent algorithms that process sensor data in real time. Our technologies also guarantee the highest safety and security standards - for reliable and secure systems in any environment. In this way, we provide you with concrete support for your technical challenges:

  • Analysis and evaluation of the feasibility of magnetic sensors and systems
  • Conception and development of customized system architectures
  • Design of innovative 3D Hall sensors including complex sensor signal processing
  • Development of intelligent algorithms for precise measurement results
  • Creation and implementation of test concepts and self-test strategies
  • Consulting and support in the development of magnetic sensor systems
  • Supply chain management for integrated sensors and systems

Applications: Making intelligent use of the nature of magnetic fields

Our 3D Hall technology enables sensor manufacturers and companies that use magnetic field sensors in their modules and applications to realize more precise, reliable and efficient solutions for their magnetic field measurements. Thanks to the pinpoint detection of magnetic fields in three dimensions, position measurements, controls and condition monitoring can be realized with impressive accuracy. HallinOne® stands for more than 20 years of reliable 3D Hall sensor technology, which has already been successfully integrated into millions of end devices - helping to make smarter, more intuitive and more convenient applications a reality. Whether in industry, medical technology, consumer electronics or charging infrastructure - HallinOne® opens up new possibilities for smart and powerful sensor concepts. The possible applications extend across various sectors and are particularly valuable in the following areas:

Laboratory applications
  • Magnetization tester for magnets
  • Magnetic field arrays and cameras
Control applications
  • Multi-axis joysticks
  • Force-sensitive input devices
Consumer products
  • Imbalance detection in washing machines
  • Window status monitoring
Charging infrastructure
  • DC meter in charging stations
  • Monitoring the battery status
Medical applications
  • Detection of positioning in MRI devices
  • Field monitoring around MRI devices

Integration and Hardware Availability

ASSP

Based on our HallinOne® technology, three ASSP solutions are available - with highly flexible configurability, allowing them to be perfectly tailored to your requirements. Together with our distribution partner, Leistungszentrum Elektroniksysteme (LZE), we make our technology available to you.

 

ASSP

HallinOne® FH3D02

 

Dual 3D Hall Sensor with EEPROM

  • 3D sensor distance: 2.5 mm
  • Integrated temperature correction
  • Integrated EEPROM for correction and linearization data
 

ASSP

HallinOne® FH3D12

 

Software Defined Dual 3D Hall Sensor

  • 3D sensor distance: 2.0 mm
  • Integrated excitation coils
  • Access to all measured magnetic and temperature values 
 

ASSP

HallinOne® FH3D04

 

Software Defined Quad 3D Hall Sensor

  • 3D sensor distance: 1.5 mm
  • Integrated excitation coils
  • Access to all measured magnetic and temperature values 

FH6D04 – RISC-V-powered Quad 3D Hall Sensor

Discover the FH6D04, a powerful RISC-V-powered quad 3D Hall sensor built on Fraunhofer's innovative HallinOne® technology. This versatile magnetic field sensor operates purely on the Hall effect principle, without the need for magnetizable materials. It offers a high dynamic range and precise 3D magnetic field measurement at four positions – all in a compact 5.0 x 4.0 x 0.6 mm WLCSP package. By utilizing magnetic field gradients, the FH6D04 is also ideal for applications requiring robust stray field resistance.

Evaluation kits are available on request for companies wishing to test the FH6D04.

 

ASSP

HallinOne® FH6D04

 

  • 3D sensor distance: 3 mm x 4 mm
  • RISC-V-based microcontroller with integrated 6D position and current measurement algorithms
  • Diagnostic options for error detection

Contact us for more information!

 

Download

Prototype FH6D04 Fact sheet

All important information about the RISC-V-powered Quad-3D-Hall-Sensor HallinOne® FH6D04