发明名称 |
Electronic device comprising hall effect region with three contacts |
摘要 |
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. |
申请公布号 |
US8922207(B2) |
申请公布日期 |
2014.12.30 |
申请号 |
US201113298917 |
申请日期 |
2011.11.17 |
申请人 |
Infineon Technologies AG |
发明人 |
Ausserlechner Udo |
分类号 |
G01R33/07;H01L43/06 |
主分类号 |
G01R33/07 |
代理机构 |
Eschweiler & Associates, LLC |
代理人 |
Eschweiler & Associates, LLC |
主权项 |
1. An electronic device comprising:
a Hall effect region; a first contact arranged in or on a surface of the Hall effect region, and configured to function at least temporarily as a first supply contact for the Hall effect region; a second contact arranged in or on the surface of the Hall effect region, the second contact being a second supply contact for the Hall effect region; and a third contact arranged in or on the surface of the Hall effect region, and configured to function at least temporarily as a sense contact; wherein the first contact and the third contact are arranged in a substantially symmetrical manner to each other with respect to the second contact, wherein an electrical current distribution within the Hall effect region is influenced by a physical quantity to be measured, and wherein 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. |
地址 |
Neubiberg DE |