Sensor with magnetic shield
US11307055B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2020 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jul 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/1284
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic sensor is disclosed. The magnetic sensor can include a sensing element and a magnetic shield. The sensing element and the magnetic shield can be vertically stacked with one another. The magnetic shield can be a magnetic shield plate that includes ferromagnetic portions spaced laterally by a non-ferromagnetic material. The sensing element can have a first side and a second side opposite the first side. The magnetic shield that can be vertically stacked over the first side of the sensing element. The magnetic shield can be spaced apart from the sensing element by an isolation layer. A passivation layer can cover at least a portion of the sensing element or the magnetic shield. The sensing element can be configured to sense a magnetic field property of a magnetic field source that is positioned on the second side of the sensing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.