The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 06, 2023

Filed:

May. 20, 2020
Applicant:

Melexis Technologies SA, Bevaix, CH;

Inventor:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/00 (2006.01); G01R 33/02 (2006.01); H01L 23/528 (2006.01); H01L 23/58 (2006.01); H01L 23/522 (2006.01); H01L 43/04 (2006.01); H01L 43/06 (2006.01); H01L 43/14 (2006.01);
U.S. Cl.
CPC ...
G01R 33/0011 (2013.01); G01R 33/02 (2013.01); H01L 23/528 (2013.01); H01L 23/5226 (2013.01); H01L 23/58 (2013.01); H01L 43/04 (2013.01); H01L 43/065 (2013.01); H01L 43/14 (2013.01);
Abstract

A magnetic flux concentrator (MFC) structure comprises a substrate, a first metal layer disposed on or over the substrate, and a second metal layer disposed on or over the first metal layer. Each metal layer comprises (i) a first wire layer comprising first wires conducting electrical signals, and (ii) a first dielectric layer disposed on the first wire layer. A magnetic flux concentrator is disposed at least partially in the first metal layer, in the second metal layer, or in both the first and the second metal layers. The structure can comprise an electronic circuit or a magnetic sensor with sensing plates. The structure can comprise a transformer or an electromagnet with suitable control circuits. The magnetic flux concentrator can comprise a metal stress-reduction layer in the first or second wire layers and a core formed by electroplating the stress-reduction layer.


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