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. 08, 2024

Filed:

Nov. 27, 2020
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventors:

Hsiao-Tsung Yen, Hsinchu, TW;

Ka-Un Chan, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01L 23/52 (2006.01); H01L 23/522 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H01L 23/5227 (2013.01);
Abstract

An asymmetric spiral inductor is provided. The asymmetric spiral inductor includes a first winding, a second winding and a third winding. The first winding has a first end and a second end and is implemented in the ultra-thick metal (UTM) layer of a semiconductor structure. The second winding, which has a third end and a fourth end, is implemented in the re-distribution layer of the semiconductor structure and has a first maximum trace width. The third winding, which has a fifth end and a sixth end, is implemented in the UTM layer of the semiconductor structure and has a second maximum trace width smaller than the first maximum trace width. The second and third ends are connected through a first through structure, the fourth and fifth ends are connected through a second through structure, and the first and sixth ends are the two ends of the asymmetric spiral inductor.


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