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:
Aug. 14, 2018

Filed:

Aug. 31, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Robert L. Barry, Essex Junction, VT (US);

Robert A. Groves, Highland, NY (US);

Venkata Nr. Vanukuru, Bangalore, IN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 5/00 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H01F 27/2871 (2013.01); H01F 2027/2809 (2013.01); Y10T 29/49071 (2015.01);
Abstract

An integrated circuit transformer structure includes at least two conductor groups stacked in parallel in different layers. A first spiral track is formed in the at least two conductor groups, the first spiral track included first turns of a first radius within each of the at least two conductor groups, and second turns of a second radius within each of the at least two conductor groups, the first and second turns being electrically connected. A second spiral track is formed in the at least two conductor groups, the second spiral track including third turns of a third radius within each of the at least two conductor groups and disposed in a same plane between the first and second turns in each of the at least two conductor groups.


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