3D hall sensor operates at higher temp range

Manufactured in a standard CMOS process, which also includes the vertical structures of the device, the HAL3625 can be produced more economically, explained Micronas marketing director Peter Zimmermann. Since there is no additional post-processing required for the monolithic semiconductor, it can operate at much higher temperatures than competing products. This feature also improves the reliability.

Applications include closed-loop control systems where the position of an actuator needs to be measured, such as valves, TPS (throttle position sensor) or EGR systems (Exhaust gas recirculation).

The device differs from MEMS-based 3D gyroscopes in that it does measure position, not acceleration, as it is the case with gyros, Zimmermann explained.

Micronas' device will also be marketed for home appliances and industrial automation.

- Christoph Hammerschmidt
Automotive Design Europe