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Magnetic field sensor device

A magnetic field sensor, sensitive technology, applied in the direction of magnetic sensor array, magnetic sensor housing, conversion sensor output, etc., can solve the problem of affecting the magnetic field measurement of Hall sensor coil and so on

Active Publication Date: 2021-11-19
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, eddy currents can occur in such leadframes, which affect the magnetic field measurement of the Hall sensors and / or coils

Method used

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  • Magnetic field sensor device
  • Magnetic field sensor device
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Embodiment Construction

[0033] Hereinafter, various embodiments will be explained in detail. It should be understood that these embodiments are illustrative only and should not be construed as limiting. In particular, other embodiments may also contain fewer components than shown, and / or may include additional components, such as those used in conventional magnetic field sensor devices. Variations, modifications and details described for one embodiment are also applicable to other embodiments, so the description will not be repeated. The features of various implementing embodiments may be combined to form further embodiments. Unless otherwise stated, terms such as "conductive", "non-conductive", "insulator", "interconnect", etc. refer to electrical conductivity.

[0034] Figures 1A to 1D A magnetic field sensor device 10 is shown according to some embodiments. Figure 1A A schematic top view of the magnetic field sensor device 10 is shown, Figure 1B shows roughly along the Figure 1A A schemati...

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Abstract

The invention relates to a magnetic field sensor device (10). The magnetic field sensor arrangement according to the exemplary embodiment has a coil ( 15 ) and a magnetic field sensor ( 17 ). A chip (13) carrying a coil (15) and a magnetic field sensor (17) is arranged on a lead frame (11). The lead frame has grooves (12).

Description

technical field [0001] The present application relates to a magnetic field sensor device. Background technique [0002] Magnetic field sensor devices are used in many applications to measure magnetic fields. Magnetic field sensor arrangements of this type are used, for example, to measure currents indirectly by measuring the magnetic field generated by the current or in other applications in which the magnetic field is to be measured. In some applications it is desirable to measure magnetic fields over a high frequency bandwidth, for example from static fields to high frequency fields at frequencies up to 100kHz or up to MHz range. [0003] To manufacture a magnetic field sensor device of this type, the magnetic field sensor such as a Hall sensor and the coil can be fabricated in a semiconductor process on a chip, eg a silicon chip. This chip is then mounted on a lead frame in some manufacturing process, thereby forming an electrical connection to the outside world. Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/07H10N52/00H10N52/80
CPCG01R33/077G01R33/075G01R33/0023G01R33/0047H10N52/00G01R33/07G01R33/09G01D5/142G01R33/0052H01L23/495G01R33/0094H10N52/80
Inventor M·莫茨
Owner INFINEON TECH AG