公开(公告)号：US20210396819A1

公开(公告)日：2021-12-23

申请号：US17465433

申请日：2021-09-02

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Marco CRESCENTINI ,  Michele BIONDI ,  Marco TARTAGNI ,  Aldo ROMANI ,  Roberto Antonio CANEGALLO

IPC: G01R33/07

Abstract: A planar Hall sensing element includes a first pair of sensing electrodes mutually opposed in a first direction across the sensing element and a second pair of sensing electrodes mutually opposed in a second direction across the sensing element, with the second direction orthogonal to the first direction. A first pair of bias electrodes is mutually opposed in a third direction and a second pair mutually opposed in a fourth direction across the sensing element, the fourth direction orthogonal to the third direction. The third and fourth directions are rotated 45° with respect to the first and second directions so each sensing electrode is arranged between a bias electrode of the first pair and second pair. A DC bias current is supplied between the first and second pairs of bias electrodes. First and second Hall voltages are sensed at the first and second pairs of sensing electrodes.