公开(公告)号：US10608168B2

公开(公告)日：2020-03-31

申请号：US15724576

申请日：2017-10-04

Applicant: Allegro MicroSystems, LLC

Inventor： Juan Manuel Cesaretti ,  Gerardo A. Monreal ,  Daniel Musciano

IPC: H01L43/06 ,  H01L43/14 ,  H01L43/04

Abstract: A planar Hall effect element be formed upon or can include a P-type substrate. The planar Hall effect element can also include a Hall plate region. The Hall plate region can include a first portion of an N-type layer disposed over the P-type substrate. The first portion of the N-type layer can include a top surface distal from the P-type substrate, and a continuous N-type outer boundary intersecting the top surface of the Hall plate region. The planar Hail effect element can also include an isolation region having a continuous outer boundary and having a continuous inner boundary, the continuous inner boundary in contact with all of the outer boundary of the Hall plate region, the P-type substrate and the first portion of the N-type layer not forming a P/N junction.

公开(公告)号：US20190103551A1

公开(公告)日：2019-04-04

申请号：US15724576

申请日：2017-10-04

Applicant: Allegro MicroSystems, LLC

Inventor： Juan Manuel Cesaretti ,  Gerardo A. Monreal ,  Daniel Musciano

IPC: H01L43/06

Abstract: A planar Hall effect element be formed upon or can include a the P-type substrate. The planar Hall effect element can also include a Hall plate region. The Hall plate region can include a first portion of an N-type layer disposed over the P-type substrate. The first portion of the N-type layer can include a top surface distal from the P-type substrate, and a continuous N-type outer boundary intersecting the top surface of the Hall plate region. The planar Hall effect element can also include an isolation region having a continuous outer boundary and having a continuous inner boundary, the continuous inner boundary in contact with all of the outer boundary of the Hall plate region, the P-type substrate and the first portion of the N-type layer not forming a P/N junction.