Technology, Process and Cost Comparison
Magnetic 2D Position Sensors for Automotive Comparison 2022
By Yole SystemPlus —
Technical and cost comparison of Hall and xMR 2D position sensors from AMS OSRAM, Melexis, TDK, ALPS Alpine, Infineon, Analog Devices, and Sensitec.
- ALPS Alpine
- AMS OSRAM
- Analog Devices
- Infineon Technologies
- Melexis
- NXP
- Sensitec Gmbh
- TDK Corporation
A magnetic sensor will detect an external magnetic field and convert it into an electrical signal. These sensors are widely used in automotive, mobility, industrial, infrastructure, and consumer applications. YOLE Intelligence measured the overall magnetic sensor market at 9.5Bunits ($2.6B) in 2021, and we expect it to reach 15.7Bunits ($4.5B) with a 9% CAGR21-27 (volume and revenue growth).
As the market relies mainly on the automotive industry (65% of global magnetic sensor revenue), global automotive megatrends drive the magnetic sensor market and create new opportunities for magnetic sensors. There is a strong need to increase the level of awareness of cars so that future processing units can sense what is happening both inside and outside the vehicle. To this end, magnetic sensors are used to measure the angle, position, or speed of moving parts (steering angle, brake and gas pedals, rotor position, throttle valve...).
Our report focuses on 2D position sensors used to measure the angle of an external magnetic field. These sensors are also referred to as “angular sensors”.
We have selected 13 (2D) position sensors and provide a deep comparative review of the technology, supply chain, and cost for each. The products analyzed in this report are from the market’s main suppliers: Infineon, TDK, Melexis, NXP, ALPS Alpine, AMS OSRAM, Analog Devices, and Sensitec.
There are four different technologies that allow, on silicon wafers, to “sense” an external magnetic field: Hall Effect, Anisotropic MagnetoResistance (AMR), Giant MagnetoResistance (GMR), and Tunnel MagnetoResistance (TMR). This report covers all four technologies. Also, we have observed that some of these sensors are coupled with a large ASIC in order to provide the desired digital / analog output. Meanwhile, other sensors are passive and deliver only an analog sin / cos output.
Yole SystemPlus has analyzed these 2D position sensors to provide insights on their structure, technology, process integration, and cost of manufacturing. Using our expertise in package opening, die decapsulation, delayering, cross-section, SEM pictures, and material analyses, we have summarized the ASIC modules (size, technology node, functions / outputs), magnetic sensor part (size, layout, sensing area, materials), and package (substrate type, dimensions).
Overview / Introduction
- Executive Summary
- Reverse Costing Methodology
- Glossary
- Technology & Chip types
Company Profile
Physical Analysis
- Hall Sensors
- AMS – AS5172B
- AMS – AS5270A
- AMS – AS5171A
- Melexis – MLX90377
- TDK – HAL3725DJ-A
- AMR Sensors
- ALPS Alpine – HGARAP001A
- Infineon – TLE5109A16 E1210
- Analog Device – ADA4571-2
- NXP – KMZ49
- Sensitec – AA745
- GMR Sensors
- Infineon – TLE5009 E2010
- Infineon – TLE5009 E1000
- TMR Sensors
- TDK – TAS2141-AAAB
Physical Comparison
Manufacturing Process Flow
- Hall Sensor Process Flow
- AMR Sensor Process Flow
- GMR Sensor Process Flow
- TMR Sensor Process Flow
- xMR Sensors Process Flow Comparison
Cost Analysis
- Hall Sensor Cost Analysis
- AMR Sensor Cost Analysis
- GMR Sensor Cost Analysis
- TMR Sensor Cost Analysis
Cost Comparison
Selling Price Comparison
KEY FEATURES
- Detailed photos (optical microscope, cross-section SEM, top-down SEM)
- Precise measurements
- Manufacturing process flow
- Supply chain evaluation
- Manufacturing cost analysis
- Cost comparison
WHAT'S NEW
There is a wide range of automotive magnetic sensors. This report narrows them down to “2D position sensors” (aka “angular sensors”).
Four different technologies are used in magnetic sensors:
- Hall Effect (five sensors analyzed)
- AMR (five sensors)
- GMR (two sensors)
- TMR (one sensor)