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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.

Patent No.:

US 12347603 B1

PDFFull Text
Date of Patent:
Jul. 01, 2025

Filed:

Dec. 28, 2018

Molded inductor with magnetic core having mold flow enhancing channels

Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Joel Nathan Brassfield, Homer Glen, IL (US);

Charles Allen DeVries, Jr., Winfield, IL (US);

Kristen Nguyen Parrish, Dallas, TX (US);

Assignee:

TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);

Attorneys:

Ronald O. Neerings

Frank D. Cimino

Primary Examiner:

Mang Tin Bik Lian

Int. Cl.
CPC ...
H01F 27/24 (2006.01); H01F 27/02 (2006.01); H01F 27/06 (2006.01); H01F 27/28 (2006.01); H01F 27/36 (2006.01); H01F 41/00 (2006.01); H01F 41/061 (2016.01); H01L 21/56 (2006.01); H01L 23/31 (2006.01); H01L 23/495 (2006.01); H01L 23/552 (2006.01); H01L 25/16 (2023.01); H02M 1/08 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2852 (2013.01); H01F 27/022 (2013.01); H01F 27/06 (2013.01); H01F 27/24 (2013.01); H01F 27/366 (2020.08); H01F 41/005 (2013.01); H01F 41/061 (2016.01); H01L 21/561 (2013.01); H01L 23/3121 (2013.01); H01L 23/49537 (2013.01); H01L 23/552 (2013.01); H01L 25/16 (2013.01); H02M 1/08 (2013.01);
Abstract

A molded inductor includes a winding having leads configured for attaching leads of the winding to pads on a package substrate, having a magnetic core with a body disposed within the winding, wherein the magnetic core has at least one mold flow enhancing feature that enhances a filling of a magnetic mold material as compared to a filling provided by a uniform cylindrical body. The magnetic mold material encases the winding and the magnetic core to form either a standalone discrete inductor component, or the magnetic component of an output filter of an integrated switching power converter module.

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