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:
Sep. 12, 2023

Filed:

Dec. 30, 2018
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventors:

Zhemin Zhang, Allen, TX (US);

Roberto Giampiero Massolini, Pavia, IT;

Joyce Marie Mullenix, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 17/00 (2006.01); H01F 19/08 (2006.01); H01L 25/16 (2023.01);
U.S. Cl.
CPC ...
H01F 19/08 (2013.01); H01F 17/0013 (2013.01); H01F 2017/0066 (2013.01); H01F 2017/0086 (2013.01); H01F 2019/085 (2013.01); H01L 25/16 (2013.01);
Abstract

A transformer respectively includes a first isolation barrier, a first inductive element, a second isolation barrier, and a second inductive element. The first isolation barrier and second isolation barrier each comprise multiple isolation layers. The transformer also includes magnetic material including a top magnetic portion disposed above the first isolation barrier. The transformer also includes a bottom magnetic portion disposed below the second inductive element; The transformer further includes an intermediary magnetic portion extending from the top magnetic portion to the bottom magnetic portion via a through-hole within the first isolation barrier, first inductive element, second isolation barrier, and second inductive element. The transformer yet further includes at least one lateral magnetic portion extending from the top magnetic portion to the bottom magnetic portion. The at least one lateral magnetic portion is disposed laterally from the first isolation barrier, first inductive element, second isolation barrier, and second inductive element.


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