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:
Nov. 03, 2020

Filed:

Oct. 12, 2016
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventors:

Hsiao-Tsung Yen, Hsinchu, TW;

Yuh-Sheng Jean, Hsinchu County, TW;

Ta-Hsun Yeh, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 21/12 (2006.01); H01F 19/04 (2006.01); H01F 17/00 (2006.01); H01L 23/64 (2006.01); H01F 27/29 (2006.01);
U.S. Cl.
CPC ...
H01F 21/12 (2013.01); H01F 17/0013 (2013.01); H01F 19/04 (2013.01); H01F 27/28 (2013.01); H01F 27/2804 (2013.01); H01F 27/29 (2013.01); H01L 23/645 (2013.01); H01F 2027/2809 (2013.01);
Abstract

A helical stacked integrated transformer formed by a first inductor and a second inductor includes a first helical coil that has a first outer coil and a first inner coil, a second helical coil that shares an overlapped region with the first helical coil and has a second outer coil and a second inner coil, and a connection structure that connects the first helical coil and the second helical coil. The first inner coil is located inside the first outer coil and the second inner coil is located inside the second outer coil. The first inductor includes a part of the first helical coil and a part of the second helical coil. The second inductor includes a part of the first helical coil and a part of the second helical coil.


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