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:
Oct. 06, 2026

Filed:

Feb. 02, 2024
Applicant:

California Institute of Technology, Pasadena, CA (US);

Inventors:

Saransh Sharma, Pasadena, CA (US);

Hayward Melton, Hinsdale, IL (US);

Azita Emami, Pasadena, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/02 (2006.01); A61B 5/06 (2006.01); G01R 33/028 (2006.01);
U.S. Cl.
CPC ...
G01R 33/0286 (2013.01); A61B 5/062 (2013.01); G01R 33/0206 (2013.01);
Abstract

A three-dimensional on-chip magnetic sensor includes first, second, and third coils. The first and second coils include respective planar spirals formed by metal layers and metal vias. Each planar spiral of the first coil includes first interconnected loops wound about a first axis, where neighboring first planar spirals are electrically connected to each other. Each planar spiral of the second coil includes second interconnected loops wound about a second axis, where neighboring second planar spirals are electrically connected to each other. The third coil has a planar spiral includes third interconnected loops that are wound about a third axis. Each electrically conductive coil is configured to produce a respective electromagnetic force (EMF) induced by an oscillating magnetic field, the respective EMF driving a respective alternating current (AC) through the respective readout circuit. Each readout circuit is configured to detect a respective peak voltage magnitude of the respective AC.


Find Patent Forward Citations

Sharma, Saransh. (2026). Three-dimensional on-chip magnetic sensor for oscillating magnetic fields (U.S. Patent No. 12754258). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12754258

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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