Magnetic sensors with a mixed oxide passivation layer
US11175358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Oct 22, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Aspects of the present disclosure include magnetic sensor devices having a mixed oxide passivation layer. Magnetic sensor devices according to certain embodiments include a magnetic sensor element and a passivation layer having two or more of zirconium oxide, aluminum oxide and tantalum oxide. Also provided are magnetic sensor devices having an encapsulating passivation layer. Magnetic sensor devices according to certain embodiments include a substrate, a magnetic sensor element and a passivation layer that encapsulates the magnetic sensor element. Methods for making a magnetic sensor with a passivation layer are described. Methods and systems for detecting one or more analytes in a sample are also described. Aspects further include kits having one or more of the subject magnetic sensor devices and a magnetic label.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.