Electronic device comprising hall effect region with three contacts
First Claim
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 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.
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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.
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Citations
24 Claims
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1. An electronic device comprising:
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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 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An electronic device comprising:
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a Hall effect region; a first contact arranged in or on a surface of the Hall effect region and configured to at least temporarily function as a supply contact; a second contact arranged in or on the surface of the Hall effect region and configured to function as a further supply contact; and a third contact arranged in or on the surface of the Hall effect region configured to at least temporarily function as a sense contact; and 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; wherein the Hall effect region is a first Hall effect region; wherein the first contact and the third contact form a first pair of contacts that are configured to alternately function as a first momentary supply contact and a first momentary sense contact arranged in or on a surface of the first Hall effect region; wherein the second contact is a first interconnection contact arranged in or on the surface of the first Hall effect region; the electronic device further comprising; a second Hall effect region; a second pair of contacts that are configured to alternately function as a second momentary supply contact and a second momentary sense contact arranged in or on a surface of the second Hall effect region; a second interconnection contact arranged in or on the surface of the second Hall effect region; and a connection configured to connect the first interconnection contact and the second interconnection contact; wherein a sense signal tapped at at least one of the first momentary sense contact and the second momentary sense contact is a function of the current distribution, the sense signal thus being indicative of the physical quantity. - View Dependent Claims (24)
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Specification