Electronic device comprising hall effect region with three contacts
US8922207B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Mar 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N52/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic device is disclosed as a part of a magnetic field sensor or a mechanical stress sensor. The electronic device includes a Hall effect region, a first contact (temporarily functioning as a first supply contact), a second contact (second supply contact), and a third contact (temporarily functioning as a first sense contact) that are arranged in or on a surface of the Hall effect region. The first contact and the third contact are arranged in a substantially symmetrical manner to each other with respect to the second contact. An electrical current distribution within the Hall effect region is influenced by a physical quantity (e.g. magnetic field strength or mechanical stress) to be measured. A sense signal tapped at the third contact is a function of the current distribution, the sense signal thus being indicative of the physical quantity. A corresponding sensing method using the electronic device is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.