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:
Jan. 31, 2023

Filed:

Dec. 17, 2020
Applicant:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;

Inventors:

Alan Roth, Hsinchu, TW;

Eric Soenen, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 38/30 (2006.01); G01R 15/18 (2006.01); H01F 5/00 (2006.01); H01L 23/522 (2006.01);
U.S. Cl.
CPC ...
H01F 38/30 (2013.01); G01R 15/183 (2013.01); H01F 5/003 (2013.01); H01L 23/5227 (2013.01);
Abstract

An integrated circuit includes a first and a second conductive path over a substrate, a coil structure over the substrate, a voltage sensing circuit electrically coupled with the coil structure, and a ferromagnetic structure including an open portion. The first conductive path is configured to carry a first time-varying current and to generate a first time-varying magnetic field. The second conductive path is configured to carry a second time-varying current and to generate a second time-varying magnetic field. The first conductive path and the second conductive path extend through the open portion of the ferromagnetic structure. The first conductive path includes a first conductive line below the ferromagnetic structure, a second conductive line above the ferromagnetic structure, and a first via plug coplanar with the ferromagnetic structure, the first via plug electrically coupling the first conductive line and the second conductive line.


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